Finding the Fourth Proportional to 16,229.04, 22,396.95 and 9,155.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,229.04 : 22,396.95 = 9,155.31 : x
2. Step 2: Convert to fraction form
   16,229.04/22,396.95 = 9,155.31/x
3. Step 3: Cross multiply
   16,229.04x = 22,396.95 × 9,155.31
4. Step 4: Simplify right side
   16,229.04x = 205,051,020.30
5. Step 5: Solve for x
   x = 205,051,020.30/16,229.04
6. Step 6: Final answer
   x = 12,634.82