Finding the Fourth Proportional to 9,906,854.69, 14,864,978.31 and 4,786,414.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906,854.69 : 14,864,978.31 = 4,786,414.58 : x
2. Step 2: Convert to fraction form
   9,906,854.69/14,864,978.31 = 4,786,414.58/x
3. Step 3: Cross multiply
   9,906,854.69x = 14,864,978.31 × 4,786,414.58
4. Step 4: Simplify right side
   9,906,854.69x = 71,149,948,951,530.20
5. Step 5: Solve for x
   x = 71,149,948,951,530.20/9,906,854.69
6. Step 6: Final answer
   x = 7,181,890.84