Finding the Fourth Proportional to 111,728.73, 154,188.69 and 60,744.89

Step by Step Solution

1. Step 1: Write the proportion equation
   111,728.73 : 154,188.69 = 60,744.89 : x
2. Step 2: Convert to fraction form
   111,728.73/154,188.69 = 60,744.89/x
3. Step 3: Cross multiply
   111,728.73x = 154,188.69 × 60,744.89
4. Step 4: Simplify right side
   111,728.73x = 9,366,174,592.76
5. Step 5: Solve for x
   x = 9,366,174,592.76/111,728.73
6. Step 6: Final answer
   x = 83,829.60