#1 William Gates III
Net Worth $57.0
billion 
Age 52
#12 Paul Allen
Net Worth $16.0
billion
Age 55
#15 Steven Ballmer
Net Worth $15.0
billion
Age 52
#61 Steven Jobs
Net Worth $5.7
billion 
Age 53
Net Worth $3.4 billion.
Age 59
Net Worth $57.0
billion
Age 52
Net Worth $16.0
billion
Age 55
Net Worth $15.0
billion
Age 52
Net Worth $5.7
billion
Age 53
Net Worth $3.4 billion.
Age 59