Finding the Fourth Proportional to 16,380.32, 22,604.24 and 8,928.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380.32 : 22,604.24 = 8,928.16 : x
2. Step 2: Convert to fraction form
   16,380.32/22,604.24 = 8,928.16/x
3. Step 3: Cross multiply
   16,380.32x = 22,604.24 × 8,928.16
4. Step 4: Simplify right side
   16,380.32x = 201,814,271.40
5. Step 5: Solve for x
   x = 201,814,271.40/16,380.32
6. Step 6: Final answer
   x = 12,320.53