Finding the Fourth Proportional to 16,380.32, 22,604.81 and 8,928.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380.32 : 22,604.81 = 8,928.32 : x
2. Step 2: Convert to fraction form
   16,380.32/22,604.81 = 8,928.32/x
3. Step 3: Cross multiply
   16,380.32x = 22,604.81 × 8,928.32
4. Step 4: Simplify right side
   16,380.32x = 201,822,819.55
5. Step 5: Solve for x
   x = 201,822,819.55/16,380.32
6. Step 6: Final answer
   x = 12,321.06