Finding the Fourth Proportional to 16,139.10, 22,269.15 and 9,065.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.10 : 22,269.15 = 9,065.82 : x
2. Step 2: Convert to fraction form
   16,139.10/22,269.15 = 9,065.82/x
3. Step 3: Cross multiply
   16,139.10x = 22,269.15 × 9,065.82
4. Step 4: Simplify right side
   16,139.10x = 201,888,105.45
5. Step 5: Solve for x
   x = 201,888,105.45/16,139.10
6. Step 6: Final answer
   x = 12,509.25