Finding the Fourth Proportional to 72,502,058.10, 108,753,087.15 and 69,715,139.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,502,058.10 : 108,753,087.15 = 69,715,139.70 : x
2. Step 2: Convert to fraction form
   72,502,058.10/108,753,087.15 = 69,715,139.70/x
3. Step 3: Cross multiply
   72,502,058.10x = 108,753,087.15 × 69,715,139.70
4. Step 4: Simplify right side
   72,502,058.10x = 7,581,736,663,468,526
5. Step 5: Solve for x
   x = 7,581,736,663,468,526/72,502,058.10
6. Step 6: Final answer
   x = 104,572,709.55