Finding the Fourth Proportional to 14,391.86, 19,860.71 and 8,104.24

Step by Step Solution

1. Step 1: Write the proportion equation
   14,391.86 : 19,860.71 = 8,104.24 : x
2. Step 2: Convert to fraction form
   14,391.86/19,860.71 = 8,104.24/x
3. Step 3: Cross multiply
   14,391.86x = 19,860.71 × 8,104.24
4. Step 4: Simplify right side
   14,391.86x = 160,955,960.41
5. Step 5: Solve for x
   x = 160,955,960.41/14,391.86
6. Step 6: Final answer
   x = 11,183.82