Finding the Fourth Proportional to 131,650.48, 197,487.72 and 42,881.20

Step by Step Solution

1. Step 1: Write the proportion equation
   131,650.48 : 197,487.72 = 42,881.20 : x
2. Step 2: Convert to fraction form
   131,650.48/197,487.72 = 42,881.20/x
3. Step 3: Cross multiply
   131,650.48x = 197,487.72 × 42,881.20
4. Step 4: Simplify right side
   131,650.48x = 8,468,510,418.86
5. Step 5: Solve for x
   x = 8,468,510,418.86/131,650.48
6. Step 6: Final answer
   x = 64,325.71