Finding the Fourth Proportional to 202,520.72, 279,479.40 and 113,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   202,520.72 : 279,479.40 = 113,096.72 : x
2. Step 2: Convert to fraction form
   202,520.72/279,479.40 = 113,096.72/x
3. Step 3: Cross multiply
   202,520.72x = 279,479.40 × 113,096.72
4. Step 4: Simplify right side
   202,520.72x = 31,608,203,447.57
5. Step 5: Solve for x
   x = 31,608,203,447.57/202,520.72
6. Step 6: Final answer
   x = 156,073.92