Finding the Fourth Proportional to 16,099.25, 22,217.36 and 8,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,099.25 : 22,217.36 = 8,928.72 : x
2. Step 2: Convert to fraction form
   16,099.25/22,217.36 = 8,928.72/x
3. Step 3: Cross multiply
   16,099.25x = 22,217.36 × 8,928.72
4. Step 4: Simplify right side
   16,099.25x = 198,372,541.94
5. Step 5: Solve for x
   x = 198,372,541.94/16,099.25
6. Step 6: Final answer
   x = 12,321.85