Finding the Fourth Proportional to 16,109.32, 22,231.20 and 9,036.22

Step by Step Solution

1. Step 1: Write the proportion equation
   16,109.32 : 22,231.20 = 9,036.22 : x
2. Step 2: Convert to fraction form
   16,109.32/22,231.20 = 9,036.22/x
3. Step 3: Cross multiply
   16,109.32x = 22,231.20 × 9,036.22
4. Step 4: Simplify right side
   16,109.32x = 200,886,014.06
5. Step 5: Solve for x
   x = 200,886,014.06/16,109.32
6. Step 6: Final answer
   x = 12,470.17