Finding the Fourth Proportional to 198,027.72, 273,292.71 and 113,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   198,027.72 : 273,292.71 = 113,142.96 : x
2. Step 2: Convert to fraction form
   198,027.72/273,292.71 = 113,142.96/x
3. Step 3: Cross multiply
   198,027.72x = 273,292.71 × 113,142.96
4. Step 4: Simplify right side
   198,027.72x = 30,921,146,155.82
5. Step 5: Solve for x
   x = 30,921,146,155.82/198,027.72
6. Step 6: Final answer
   x = 156,145.54