Finding the Fourth Proportional to 16,478.56, 22,740.28 and 8,924.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478.56 : 22,740.28 = 8,924.72 : x
2. Step 2: Convert to fraction form
   16,478.56/22,740.28 = 8,924.72/x
3. Step 3: Cross multiply
   16,478.56x = 22,740.28 × 8,924.72
4. Step 4: Simplify right side
   16,478.56x = 202,950,495.71
5. Step 5: Solve for x
   x = 202,950,495.71/16,478.56
6. Step 6: Final answer
   x = 12,316.03