Puerto Rico lurched one step closer to default, saying one of its agencies failed to transfer cash to a trustee to cover an Aug. 1 debt payment because the legislature didn’t appropriate the funds. If it doesn’t, that would mark the first time Puerto Rico has defaulted on a debt payment and would come as the commonwealth seeks to negotiate with creditors to restructure $72 billion of obligations. “This payment may not be made and will probably lead to the government trying to exchange this paper,” Luis Fortuno, Puerto Rico’s governor from 2009 through 2012, said during a telephone interview.