Finding the Fourth Proportional to 22,790,874.88, 31,451,499.48 and 12,478,557.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,790,874.88 : 31,451,499.48 = 12,478,557.52 : x
2. Step 2: Convert to fraction form
   22,790,874.88/31,451,499.48 = 12,478,557.52/x
3. Step 3: Cross multiply
   22,790,874.88x = 31,451,499.48 × 12,478,557.52
4. Step 4: Simplify right side
   22,790,874.88x = 392,469,345,351,430.06
5. Step 5: Solve for x
   x = 392,469,345,351,430.06/22,790,874.88
6. Step 6: Final answer
   x = 17,220,459.83