how do I solve this

The government, through a subsidy program, distributes $19,000,000. If each person or agency spends 25% of what is received. and 25% of this is spent, and so on, how much total increase in spending results from this goverment action? (Let a1 =4,750,000.) The total increase in spending will be approximately $|:|. (Round to the nearest dollar as needed.)