Finding the Fourth Proportional to 16,227.31, 22,389.45 and 9,509.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,227.31 : 22,389.45 = 9,509.33 : x
2. Step 2: Convert to fraction form
   16,227.31/22,389.45 = 9,509.33/x
3. Step 3: Cross multiply
   16,227.31x = 22,389.45 × 9,509.33
4. Step 4: Simplify right side
   16,227.31x = 212,908,668.57
5. Step 5: Solve for x
   x = 212,908,668.57/16,227.31
6. Step 6: Final answer
   x = 13,120.39