Finding the Fourth Proportional to 16,449.89, 24,651.14 and 12,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,449.89 : 24,651.14 = 12,734.72 : x
2. Step 2: Convert to fraction form
   16,449.89/24,651.14 = 12,734.72/x
3. Step 3: Cross multiply
   16,449.89x = 24,651.14 × 12,734.72
4. Step 4: Simplify right side
   16,449.89x = 313,925,271.09
5. Step 5: Solve for x
   x = 313,925,271.09/16,449.89
6. Step 6: Final answer
   x = 19,083.74