Finding the Fourth Proportional to 16,389.31, 22,617.25 and 8,937.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.31 : 22,617.25 = 8,937.31 : x
2. Step 2: Convert to fraction form
   16,389.31/22,617.25 = 8,937.31/x
3. Step 3: Cross multiply
   16,389.31x = 22,617.25 × 8,937.31
4. Step 4: Simplify right side
   16,389.31x = 202,137,374.60
5. Step 5: Solve for x
   x = 202,137,374.60/16,389.31
6. Step 6: Final answer
   x = 12,333.49