Finding the Fourth Proportional to 16,382.39, 22,605.41 and 9,211.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,382.39 : 22,605.41 = 9,211.31 : x
2. Step 2: Convert to fraction form
   16,382.39/22,605.41 = 9,211.31/x
3. Step 3: Cross multiply
   16,382.39x = 22,605.41 × 9,211.31
4. Step 4: Simplify right side
   16,382.39x = 208,225,280.10
5. Step 5: Solve for x
   x = 208,225,280.10/16,382.39
6. Step 6: Final answer
   x = 12,710.32