Finding the Fourth Proportional to 16,478.55, 22,740.27 and 8,924.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478.55 : 22,740.27 = 8,924.78 : x
2. Step 2: Convert to fraction form
   16,478.55/22,740.27 = 8,924.78/x
3. Step 3: Cross multiply
   16,478.55x = 22,740.27 × 8,924.78
4. Step 4: Simplify right side
   16,478.55x = 202,951,793.19
5. Step 5: Solve for x
   x = 202,951,793.19/16,478.55
6. Step 6: Final answer
   x = 12,316.12