Finding the Fourth Proportional to 16,591.32, 22,896.02 and 9,139.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,591.32 : 22,896.02 = 9,139.32 : x
2. Step 2: Convert to fraction form
   16,591.32/22,896.02 = 9,139.32/x
3. Step 3: Cross multiply
   16,591.32x = 22,896.02 × 9,139.32
4. Step 4: Simplify right side
   16,591.32x = 209,253,893.33
5. Step 5: Solve for x
   x = 209,253,893.33/16,591.32
6. Step 6: Final answer
   x = 12,612.25