Finding the Fourth Proportional to 71,796.17, 107,472.83 and 65,672.57

Step by Step Solution

1. Step 1: Write the proportion equation
   71,796.17 : 107,472.83 = 65,672.57 : x
2. Step 2: Convert to fraction form
   71,796.17/107,472.83 = 65,672.57/x
3. Step 3: Cross multiply
   71,796.17x = 107,472.83 × 65,672.57
4. Step 4: Simplify right side
   71,796.17x = 7,058,016,891.59
5. Step 5: Solve for x
   x = 7,058,016,891.59/71,796.17
6. Step 6: Final answer
   x = 98,306.31