Finding the Fourth Proportional to 14,144.31, 19,520.10 and 8,177.49

Step by Step Solution

1. Step 1: Write the proportion equation
   14,144.31 : 19,520.10 = 8,177.49 : x
2. Step 2: Convert to fraction form
   14,144.31/19,520.10 = 8,177.49/x
3. Step 3: Cross multiply
   14,144.31x = 19,520.10 × 8,177.49
4. Step 4: Simplify right side
   14,144.31x = 159,625,422.55
5. Step 5: Solve for x
   x = 159,625,422.55/14,144.31
6. Step 6: Final answer
   x = 11,285.49