Finding the Fourth Proportional to 101,359.62, 139,872.15 and 56,034.72

Step by Step Solution

1. Step 1: Write the proportion equation
   101,359.62 : 139,872.15 = 56,034.72 : x
2. Step 2: Convert to fraction form
   101,359.62/139,872.15 = 56,034.72/x
3. Step 3: Cross multiply
   101,359.62x = 139,872.15 × 56,034.72
4. Step 4: Simplify right side
   101,359.62x = 7,837,696,761.05
5. Step 5: Solve for x
   x = 7,837,696,761.05/101,359.62
6. Step 6: Final answer
   x = 77,325.63