Finding the Fourth Proportional to 101,132.72, 139,535.16 and 65,324.24

Step by Step Solution

1. Step 1: Write the proportion equation
   101,132.72 : 139,535.16 = 65,324.24 : x
2. Step 2: Convert to fraction form
   101,132.72/139,535.16 = 65,324.24/x
3. Step 3: Cross multiply
   101,132.72x = 139,535.16 × 65,324.24
4. Step 4: Simplify right side
   101,132.72x = 9,115,028,280.28
5. Step 5: Solve for x
   x = 9,115,028,280.28/101,132.72
6. Step 6: Final answer
   x = 90,129.37