Finding the Fourth Proportional to 12,914,976, 17,822,666.88 and 7,485,617.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,914,976 : 17,822,666.88 = 7,485,617.28 : x
2. Step 2: Convert to fraction form
   12,914,976/17,822,666.88 = 7,485,617.28/x
3. Step 3: Cross multiply
   12,914,976x = 17,822,666.88 × 7,485,617.28
4. Step 4: Simplify right side
   12,914,976x = 133,413,663,172,611.69
5. Step 5: Solve for x
   x = 133,413,663,172,611.69/12,914,976
6. Step 6: Final answer
   x = 10,330,151.85