Finding the Fourth Proportional to 14,665.50, 20,238.42 and 8,377.86

Step by Step Solution

1. Step 1: Write the proportion equation
   14,665.50 : 20,238.42 = 8,377.86 : x
2. Step 2: Convert to fraction form
   14,665.50/20,238.42 = 8,377.86/x
3. Step 3: Cross multiply
   14,665.50x = 20,238.42 × 8,377.86
4. Step 4: Simplify right side
   14,665.50x = 169,554,649.38
5. Step 5: Solve for x
   x = 169,554,649.38/14,665.50
6. Step 6: Final answer
   x = 11,561.46