Finding the Fourth Proportional to 14,171.55, 21,262.79 and 5,404.41

Step by Step Solution

1. Step 1: Write the proportion equation
   14,171.55 : 21,262.79 = 5,404.41 : x
2. Step 2: Convert to fraction form
   14,171.55/21,262.79 = 5,404.41/x
3. Step 3: Cross multiply
   14,171.55x = 21,262.79 × 5,404.41
4. Step 4: Simplify right side
   14,171.55x = 114,912,834.90
5. Step 5: Solve for x
   x = 114,912,834.90/14,171.55
6. Step 6: Final answer
   x = 8,108.70