Finding the Fourth Proportional to 111,128.67, 153,356.38 and 60,140.29

Step by Step Solution

1. Step 1: Write the proportion equation
   111,128.67 : 153,356.38 = 60,140.29 : x
2. Step 2: Convert to fraction form
   111,128.67/153,356.38 = 60,140.29/x
3. Step 3: Cross multiply
   111,128.67x = 153,356.38 × 60,140.29
4. Step 4: Simplify right side
   111,128.67x = 9,222,897,166.55
5. Step 5: Solve for x
   x = 9,222,897,166.55/111,128.67
6. Step 6: Final answer
   x = 82,992.96