Finding the Fourth Proportional to 16,155.12, 22,293.96 and 9,081.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,155.12 : 22,293.96 = 9,081.60 : x
2. Step 2: Convert to fraction form
   16,155.12/22,293.96 = 9,081.60/x
3. Step 3: Cross multiply
   16,155.12x = 22,293.96 × 9,081.60
4. Step 4: Simplify right side
   16,155.12x = 202,464,827.14
5. Step 5: Solve for x
   x = 202,464,827.14/16,155.12
6. Step 6: Final answer
   x = 12,532.55