Finding the Fourth Proportional to 16,308.76, 24,477.42 and 8,416.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,308.76 : 24,477.42 = 8,416.60 : x
2. Step 2: Convert to fraction form
   16,308.76/24,477.42 = 8,416.60/x
3. Step 3: Cross multiply
   16,308.76x = 24,477.42 × 8,416.60
4. Step 4: Simplify right side
   16,308.76x = 206,016,653.17
5. Step 5: Solve for x
   x = 206,016,653.17/16,308.76
6. Step 6: Final answer
   x = 12,632.27