Finding the Fourth Proportional to 111,123.98, 153,349.92 and 60,135.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,123.98 : 153,349.92 = 60,135.60 : x
2. Step 2: Convert to fraction form
   111,123.98/153,349.92 = 60,135.60/x
3. Step 3: Cross multiply
   111,123.98x = 153,349.92 × 60,135.60
4. Step 4: Simplify right side
   111,123.98x = 9,221,789,449.15
5. Step 5: Solve for x
   x = 9,221,789,449.15/111,123.98
6. Step 6: Final answer
   x = 82,986.49