Finding the Fourth Proportional to 11,359,651.16, 17,026,854.98 and 8,655,059.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,359,651.16 : 17,026,854.98 = 8,655,059.31 : x
2. Step 2: Convert to fraction form
   11,359,651.16/17,026,854.98 = 8,655,059.31/x
3. Step 3: Cross multiply
   11,359,651.16x = 17,026,854.98 × 8,655,059.31
4. Step 4: Simplify right side
   11,359,651.16x = 147,368,439,671,393.59
5. Step 5: Solve for x
   x = 147,368,439,671,393.59/11,359,651.16
6. Step 6: Final answer
   x = 12,972,972.29