Finding the Fourth Proportional to 16,451.16, 24,665.22 and 7,680.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,451.16 : 24,665.22 = 7,680.84 : x
2. Step 2: Convert to fraction form
   16,451.16/24,665.22 = 7,680.84/x
3. Step 3: Cross multiply
   16,451.16x = 24,665.22 × 7,680.84
4. Step 4: Simplify right side
   16,451.16x = 189,449,608.38
5. Step 5: Solve for x
   x = 189,449,608.38/16,451.16
6. Step 6: Final answer
   x = 11,515.88