Finding the Fourth Proportional to 16,109.97, 22,231.73 and 9,036.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,109.97 : 22,231.73 = 9,036.40 : x
2. Step 2: Convert to fraction form
   16,109.97/22,231.73 = 9,036.40/x
3. Step 3: Cross multiply
   16,109.97x = 22,231.73 × 9,036.40
4. Step 4: Simplify right side
   16,109.97x = 200,894,648.63
5. Step 5: Solve for x
   x = 200,894,648.63/16,109.97
6. Step 6: Final answer
   x = 12,470.21