Finding the Fourth Proportional to 14,766.72, 20,373.57 and 8,392.83

Step by Step Solution

1. Step 1: Write the proportion equation
   14,766.72 : 20,373.57 = 8,392.83 : x
2. Step 2: Convert to fraction form
   14,766.72/20,373.57 = 8,392.83/x
3. Step 3: Cross multiply
   14,766.72x = 20,373.57 × 8,392.83
4. Step 4: Simplify right side
   14,766.72x = 170,991,909.50
5. Step 5: Solve for x
   x = 170,991,909.50/14,766.72
6. Step 6: Final answer
   x = 11,579.55