Finding the Fourth Proportional to 131,219.22, 196,860.07 and 42,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,219.22 : 196,860.07 = 42,472.72 : x
2. Step 2: Convert to fraction form
   131,219.22/196,860.07 = 42,472.72/x
3. Step 3: Cross multiply
   131,219.22x = 196,860.07 × 42,472.72
4. Step 4: Simplify right side
   131,219.22x = 8,361,182,931.46
5. Step 5: Solve for x
   x = 8,361,182,931.46/131,219.22
6. Step 6: Final answer
   x = 63,719.19