Finding the Fourth Proportional to 16,231.61, 22,399.52 and 9,061.11

Step by Step Solution

1. Step 1: Write the proportion equation
   16,231.61 : 22,399.52 = 9,061.11 : x
2. Step 2: Convert to fraction form
   16,231.61/22,399.52 = 9,061.11/x
3. Step 3: Cross multiply
   16,231.61x = 22,399.52 × 9,061.11
4. Step 4: Simplify right side
   16,231.61x = 202,964,537.32
5. Step 5: Solve for x
   x = 202,964,537.32/16,231.61
6. Step 6: Final answer
   x = 12,504.27