Finding the Fourth Proportional to 16,478.72, 22,740.56 and 8,924.85

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478.72 : 22,740.56 = 8,924.85 : x
2. Step 2: Convert to fraction form
   16,478.72/22,740.56 = 8,924.85/x
3. Step 3: Cross multiply
   16,478.72x = 22,740.56 × 8,924.85
4. Step 4: Simplify right side
   16,478.72x = 202,956,042.29
5. Step 5: Solve for x
   x = 202,956,042.29/16,478.72
6. Step 6: Final answer
   x = 12,316.25