Finding the Fourth Proportional to 111,423.78, 153,763.92 and 60,436.04

Step by Step Solution

1. Step 1: Write the proportion equation
   111,423.78 : 153,763.92 = 60,436.04 : x
2. Step 2: Convert to fraction form
   111,423.78/153,763.92 = 60,436.04/x
3. Step 3: Cross multiply
   111,423.78x = 153,763.92 × 60,436.04
4. Step 4: Simplify right side
   111,423.78x = 9,292,881,650.86
5. Step 5: Solve for x
   x = 9,292,881,650.86/111,423.78
6. Step 6: Final answer
   x = 83,401.24