Finding the Fourth Proportional to 71,760.17, 99,017.82 and 41,539.61

Step by Step Solution

1. Step 1: Write the proportion equation
   71,760.17 : 99,017.82 = 41,539.61 : x
2. Step 2: Convert to fraction form
   71,760.17/99,017.82 = 41,539.61/x
3. Step 3: Cross multiply
   71,760.17x = 99,017.82 × 41,539.61
4. Step 4: Simplify right side
   71,760.17x = 4,113,161,130.76
5. Step 5: Solve for x
   x = 4,113,161,130.76/71,760.17
6. Step 6: Final answer
   x = 57,318.17