Finding the Fourth Proportional to 12,231,165.97, 16,865,141.61 and 7,815,057.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,231,165.97 : 16,865,141.61 = 7,815,057.26 : x
2. Step 2: Convert to fraction form
   12,231,165.97/16,865,141.61 = 7,815,057.26/x
3. Step 3: Cross multiply
   12,231,165.97x = 16,865,141.61 × 7,815,057.26
4. Step 4: Simplify right side
   12,231,165.97x = 131,802,047,380,158.58
5. Step 5: Solve for x
   x = 131,802,047,380,158.58/12,231,165.97
6. Step 6: Final answer
   x = 10,775,918.48