Finding the Fourth Proportional to 16,109.63, 22,231.30 and 9,036.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,109.63 : 22,231.30 = 9,036.05 : x
2. Step 2: Convert to fraction form
   16,109.63/22,231.30 = 9,036.05/x
3. Step 3: Cross multiply
   16,109.63x = 22,231.30 × 9,036.05
4. Step 4: Simplify right side
   16,109.63x = 200,883,004.62
5. Step 5: Solve for x
   x = 200,883,004.62/16,109.63
6. Step 6: Final answer
   x = 12,469.75