Finding the Fourth Proportional to 111,142.74, 153,375.72 and 60,154.40

Step by Step Solution

1. Step 1: Write the proportion equation
   111,142.74 : 153,375.72 = 60,154.40 : x
2. Step 2: Convert to fraction form
   111,142.74/153,375.72 = 60,154.40/x
3. Step 3: Cross multiply
   111,142.74x = 153,375.72 × 60,154.40
4. Step 4: Simplify right side
   111,142.74x = 9,226,224,411.17
5. Step 5: Solve for x
   x = 9,226,224,411.17/111,142.74
6. Step 6: Final answer
   x = 83,012.39