Finding the Fourth Proportional to 56,892,139.38, 78,511,359.06 and 30,786,654.24

Step by Step Solution

1. Step 1: Write the proportion equation
   56,892,139.38 : 78,511,359.06 = 30,786,654.24 : x
2. Step 2: Convert to fraction form
   56,892,139.38/78,511,359.06 = 30,786,654.24/x
3. Step 3: Cross multiply
   56,892,139.38x = 78,511,359.06 × 30,786,654.24
4. Step 4: Simplify right side
   56,892,139.38x = 2,417,102,065,292,711.50
5. Step 5: Solve for x
   x = 2,417,102,065,292,711.50/56,892,139.38
6. Step 6: Final answer
   x = 42,485,694.71