Actually Daimler Benz (DASA), the then owner of Fokker, pulled the plug. It's really too bad, because Fokker had a 100 seater jet before regional airliners became popular. In a way it was ahead of its time.
This page provides more detailed information on Fokker's demise. It is in Dutch though... http://www.fokkernl.com/content/verslag5/INHOUD.htm
A brief summary in English:
Fokker's receivers concluded that the simultaneous development of F50 & F100 was ill-advised form the very beginning.
projected development costs : FL70 million
actual development costs: FL775 million
projected production costs: FL0.6 billion
actual production costs: FL2.5 billion
exploding development costs coincide with the end of the F27/F28 production
delays in the development of the F100 lead to hefty penalties
Rigid mamagement structure
Fokker as an organization was top-heavy and was unable to implement change quickly.
Worldwide low demand
The F100 came on the market when demand for airliners were at a all-time low (1993). It had only 10 orders for the F100 at the time.
Fokker produced more airplanes than they actually sold; there were 18 "white tails" F100 and 17 F50.
Many F100s were leased to Airlines by a subsidiary of Fokker. The lease contract was always in US$. The US$ dropped from FL1.90 at the time of signing to FL1.60 at the time of the lease.
Fokker became part of DASA in 1992
In 1995 DASA decided not to provide futher financing.
Fokker went bankrupt in Jan.29. 1996