This 2005 story in the New York Times says that Donald Trump and each of his four siblings inherited about $35 million apiece. His empire is now valued at over $3 billion. How is he worth less now?
Lying is not very smart. Apparently, you have never run much of anything either; other than your big mouth. Bankruptcy is not unusual for people who actually do things for a living other than sue people and run off at the mouth.
Trump also got his fathers real-estate business, and was given hundreds of millions before his father died.