Finding the Fourth Proportional to 28,693,609.92, 42,857,544.72 and 25,956,947.04

Step by Step Solution

1. Step 1: Write the proportion equation
   28,693,609.92 : 42,857,544.72 = 25,956,947.04 : x
2. Step 2: Convert to fraction form
   28,693,609.92/42,857,544.72 = 25,956,947.04/x
3. Step 3: Cross multiply
   28,693,609.92x = 42,857,544.72 × 25,956,947.04
4. Step 4: Simplify right side
   28,693,609.92x = 1,112,451,018,561,471.50
5. Step 5: Solve for x
   x = 1,112,451,018,561,471.50/28,693,609.92
6. Step 6: Final answer
   x = 38,769,991.70