Finding the Fourth Proportional to 16,300.64, 24,231.15 and 15,821.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,300.64 : 24,231.15 = 15,821.73 : x
2. Step 2: Convert to fraction form
   16,300.64/24,231.15 = 15,821.73/x
3. Step 3: Cross multiply
   16,300.64x = 24,231.15 × 15,821.73
4. Step 4: Simplify right side
   16,300.64x = 383,378,712.89
5. Step 5: Solve for x
   x = 383,378,712.89/16,300.64
6. Step 6: Final answer
   x = 23,519.24