Nigerian billionaire, Aliko Dangote is now the world's 23rd richest man, according to Forbes.

Dangote moved 20 spots from his earlier position of 43rd richest and has also been named the world's 68th most powerful person.
Source: http://www.ereporter.com.ng/index.php/entertainment-news/item/1096-dangote-now-23rd-world-s-richest-man-68th-most-powerful-man-on-earth