Finding the Fourth Proportional to 14,105.50, 21,160.49 and 5,671.98

Step by Step Solution

1. Step 1: Write the proportion equation
   14,105.50 : 21,160.49 = 5,671.98 : x
2. Step 2: Convert to fraction form
   14,105.50/21,160.49 = 5,671.98/x
3. Step 3: Cross multiply
   14,105.50x = 21,160.49 × 5,671.98
4. Step 4: Simplify right side
   14,105.50x = 120,021,847.71
5. Step 5: Solve for x
   x = 120,021,847.71/14,105.50
6. Step 6: Final answer
   x = 8,508.87