Quote:The magazine estimates that Mr Slim, whose business interests range from telecommunications to construction, is worth $73bn (£49bn).
1. Carlos Slim - $73.0 billion
2. Bill Gates - $67.0 billion
3. Amancio Ortega - $57.0 billion
4. Warren Buffett - $53.5 billion
5. Larry Ellison - $43.0 billion
6. Charles Koch - $34.0 billion
7. David Koch - $34.0 billion
8. Li Ka-shing - $31.0 billion
9. Liliane Bettencourt - $30.0 billion
10.Bernard Arnault - $29.0 billion