Finding the Fourth Proportional to 131,219.98, 196,861.20 and 42,473.48

Step by Step Solution

1. Step 1: Write the proportion equation
   131,219.98 : 196,861.20 = 42,473.48 : x
2. Step 2: Convert to fraction form
   131,219.98/196,861.20 = 42,473.48/x
3. Step 3: Cross multiply
   131,219.98x = 196,861.20 × 42,473.48
4. Step 4: Simplify right side
   131,219.98x = 8,361,379,256.67
5. Step 5: Solve for x
   x = 8,361,379,256.67/131,219.98
6. Step 6: Final answer
   x = 63,720.32