Finding the Fourth Proportional to 8,496,042.32, 12,737,646.84 and 5,129,445.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,496,042.32 : 12,737,646.84 = 5,129,445.20 : x
2. Step 2: Convert to fraction form
   8,496,042.32/12,737,646.84 = 5,129,445.20/x
3. Step 3: Cross multiply
   8,496,042.32x = 12,737,646.84 × 5,129,445.20
4. Step 4: Simplify right side
   8,496,042.32x = 65,337,061,442,733.17
5. Step 5: Solve for x
   x = 65,337,061,442,733.17/8,496,042.32
6. Step 6: Final answer
   x = 7,690,293.78