Finding the Fourth Proportional to 16,507.20, 24,734.79 and 12,768.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,507.20 : 24,734.79 = 12,768.12 : x
2. Step 2: Convert to fraction form
   16,507.20/24,734.79 = 12,768.12/x
3. Step 3: Cross multiply
   16,507.20x = 24,734.79 × 12,768.12
4. Step 4: Simplify right side
   16,507.20x = 315,816,766.89
5. Step 5: Solve for x
   x = 315,816,766.89/16,507.20
6. Step 6: Final answer
   x = 19,132.06