Finding the Fourth Proportional to 116,909.50, 161,350.92 and 65,932.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,909.50 : 161,350.92 = 65,932.72 : x
2. Step 2: Convert to fraction form
   116,909.50/161,350.92 = 65,932.72/x
3. Step 3: Cross multiply
   116,909.50x = 161,350.92 × 65,932.72
4. Step 4: Simplify right side
   116,909.50x = 10,638,305,030.10
5. Step 5: Solve for x
   x = 10,638,305,030.10/116,909.50
6. Step 6: Final answer
   x = 90,996.07