Finding the Fourth Proportional to 124,320.30, 186,536.07 and 65,142.24

Step by Step Solution

1. Step 1: Write the proportion equation
   124,320.30 : 186,536.07 = 65,142.24 : x
2. Step 2: Convert to fraction form
   124,320.30/186,536.07 = 65,142.24/x
3. Step 3: Cross multiply
   124,320.30x = 186,536.07 × 65,142.24
4. Step 4: Simplify right side
   124,320.30x = 12,151,377,440.60
5. Step 5: Solve for x
   x = 12,151,377,440.60/124,320.30
6. Step 6: Final answer
   x = 97,742.50