Finding the Fourth Proportional to 16,109.65, 22,231.29 and 9,036.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,109.65 : 22,231.29 = 9,036.28 : x
2. Step 2: Convert to fraction form
   16,109.65/22,231.29 = 9,036.28/x
3. Step 3: Cross multiply
   16,109.65x = 22,231.29 × 9,036.28
4. Step 4: Simplify right side
   16,109.65x = 200,888,161.20
5. Step 5: Solve for x
   x = 200,888,161.20/16,109.65
6. Step 6: Final answer
   x = 12,470.05