Finding the Fourth Proportional to 16,355.31, 22,571.02 and 9,282.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,355.31 : 22,571.02 = 9,282.39 : x
2. Step 2: Convert to fraction form
   16,355.31/22,571.02 = 9,282.39/x
3. Step 3: Cross multiply
   16,355.31x = 22,571.02 × 9,282.39
4. Step 4: Simplify right side
   16,355.31x = 209,513,010.34
5. Step 5: Solve for x
   x = 209,513,010.34/16,355.31
6. Step 6: Final answer
   x = 12,810.09