Finding the Fourth Proportional to 16,309.49, 24,389.51 and 12,152.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,309.49 : 24,389.51 = 12,152.43 : x
2. Step 2: Convert to fraction form
   16,309.49/24,389.51 = 12,152.43/x
3. Step 3: Cross multiply
   16,309.49x = 24,389.51 × 12,152.43
4. Step 4: Simplify right side
   16,309.49x = 296,391,752.25
5. Step 5: Solve for x
   x = 296,391,752.25/16,309.49
6. Step 6: Final answer
   x = 18,172.97