Finding the Fourth Proportional to 113,823,715.50, 157,098,006.90 and 64,931,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,823,715.50 : 157,098,006.90 = 64,931,143.50 : x
2. Step 2: Convert to fraction form
   113,823,715.50/157,098,006.90 = 64,931,143.50/x
3. Step 3: Cross multiply
   113,823,715.50x = 157,098,006.90 × 64,931,143.50
4. Step 4: Simplify right side
   113,823,715.50x = 10,200,553,229,587,890
5. Step 5: Solve for x
   x = 10,200,553,229,587,890/113,823,715.50
6. Step 6: Final answer
   x = 89,617,117.00