Finding the Fourth Proportional to 108,687.29, 149,986.55 and 60,940.49

Step by Step Solution

1. Step 1: Write the proportion equation
   108,687.29 : 149,986.55 = 60,940.49 : x
2. Step 2: Convert to fraction form
   108,687.29/149,986.55 = 60,940.49/x
3. Step 3: Cross multiply
   108,687.29x = 149,986.55 × 60,940.49
4. Step 4: Simplify right side
   108,687.29x = 9,140,253,252.83
5. Step 5: Solve for x
   x = 9,140,253,252.83/108,687.29
6. Step 6: Final answer
   x = 84,096.80