Finding the Fourth Proportional to 131,231.20, 196,877.96 and 42,484.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,231.20 : 196,877.96 = 42,484.72 : x
2. Step 2: Convert to fraction form
   131,231.20/196,877.96 = 42,484.72/x
3. Step 3: Cross multiply
   131,231.20x = 196,877.96 × 42,484.72
4. Step 4: Simplify right side
   131,231.20x = 8,364,305,004.77
5. Step 5: Solve for x
   x = 8,364,305,004.77/131,231.20
6. Step 6: Final answer
   x = 63,737.17