Finding the Fourth Proportional to 16,308.32, 22,504.88 and 8,856.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,308.32 : 22,504.88 = 8,856.16 : x
2. Step 2: Convert to fraction form
   16,308.32/22,504.88 = 8,856.16/x
3. Step 3: Cross multiply
   16,308.32x = 22,504.88 × 8,856.16
4. Step 4: Simplify right side
   16,308.32x = 199,306,818.06
5. Step 5: Solve for x
   x = 199,306,818.06/16,308.32
6. Step 6: Final answer
   x = 12,221.17