Finding the Fourth Proportional to 108,142.18, 149,235.15 and 60,394.30

Step by Step Solution

1. Step 1: Write the proportion equation
   108,142.18 : 149,235.15 = 60,394.30 : x
2. Step 2: Convert to fraction form
   108,142.18/149,235.15 = 60,394.30/x
3. Step 3: Cross multiply
   108,142.18x = 149,235.15 × 60,394.30
4. Step 4: Simplify right side
   108,142.18x = 9,012,952,419.65
5. Step 5: Solve for x
   x = 9,012,952,419.65/108,142.18
6. Step 6: Final answer
   x = 83,343.54