Finding the Fourth Proportional to 198,142.52, 273,436.68 and 113,261.42

Step by Step Solution

1. Step 1: Write the proportion equation
   198,142.52 : 273,436.68 = 113,261.42 : x
2. Step 2: Convert to fraction form
   198,142.52/273,436.68 = 113,261.42/x
3. Step 3: Cross multiply
   198,142.52x = 273,436.68 × 113,261.42
4. Step 4: Simplify right side
   198,142.52x = 30,969,826,656.89
5. Step 5: Solve for x
   x = 30,969,826,656.89/198,142.52
6. Step 6: Final answer
   x = 156,300.76