Finding the Fourth Proportional to 16,456.83, 24,629.89 and 12,443.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,456.83 : 24,629.89 = 12,443.35 : x
2. Step 2: Convert to fraction form
   16,456.83/24,629.89 = 12,443.35/x
3. Step 3: Cross multiply
   16,456.83x = 24,629.89 × 12,443.35
4. Step 4: Simplify right side
   16,456.83x = 306,478,275.54
5. Step 5: Solve for x
   x = 306,478,275.54/16,456.83
6. Step 6: Final answer
   x = 18,623.16