Finding the Fourth Proportional to 131,401.88, 197,133.80 and 42,648.56

Step by Step Solution

1. Step 1: Write the proportion equation
   131,401.88 : 197,133.80 = 42,648.56 : x
2. Step 2: Convert to fraction form
   131,401.88/197,133.80 = 42,648.56/x
3. Step 3: Cross multiply
   131,401.88x = 197,133.80 × 42,648.56
4. Step 4: Simplify right side
   131,401.88x = 8,407,472,697.33
5. Step 5: Solve for x
   x = 8,407,472,697.33/131,401.88
6. Step 6: Final answer
   x = 63,982.90