Finding the Fourth Proportional to 101,131.92, 139,501.92 and 65,343.03

Step by Step Solution

1. Step 1: Write the proportion equation
   101,131.92 : 139,501.92 = 65,343.03 : x
2. Step 2: Convert to fraction form
   101,131.92/139,501.92 = 65,343.03/x
3. Step 3: Cross multiply
   101,131.92x = 139,501.92 × 65,343.03
4. Step 4: Simplify right side
   101,131.92x = 9,115,478,143.62
5. Step 5: Solve for x
   x = 9,115,478,143.62/101,131.92
6. Step 6: Final answer
   x = 90,134.53