Finding the Fourth Proportional to 101,761.29, 140,437.71 and 56,443.59

Step by Step Solution

1. Step 1: Write the proportion equation
   101,761.29 : 140,437.71 = 56,443.59 : x
2. Step 2: Convert to fraction form
   101,761.29/140,437.71 = 56,443.59/x
3. Step 3: Cross multiply
   101,761.29x = 140,437.71 × 56,443.59
4. Step 4: Simplify right side
   101,761.29x = 7,926,808,523.78
5. Step 5: Solve for x
   x = 7,926,808,523.78/101,761.29
6. Step 6: Final answer
   x = 77,896.11