Spain will explain today how it plans to plug a huge hole in the finances of Bankia, the country's fourth largest lender. Details of the rescue are due to be given by the Economy Minister Luis de Guindos. Bankia needs to find close to nine billion euros so it complies with government demands to cushion itself against property loan losses and to meet strict European Banking Authority rules on capital reserves. The government has just picked Goldman Sachs to value Bankia and consultancies Oliver Wyman and Roland Berger were hired to audit other banks" loan books, damaged by a property crash that helped push bad loans to their highest in 18 years. The help for Bankia is part of an effort to clean up a banking sector laden with bad debts and stop the country sinking further into the eurozone debt crisis. More about: Banking, Debt crisis, Restructuring plan, Spanish economy