Mikhail Prokhorov has survived the N.B.A.?s background examination, helping the billionaire take another step toward acquiring 80 percent of the Nets and 45 percent of the proposed Barclays Center in Brooklyn.

?There were multiple investigations of him by interested parties and there was nothing that was disclosed that would cause us not to move forward with his application,? N.B.A. Commissioner David Stern said Thursday.

The positive results of the vetting process were made known to the league earlier this month.