Finding the Fourth Proportional to 16,450.83, 24,679.89 and 7,680.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,450.83 : 24,679.89 = 7,680.96 : x
2. Step 2: Convert to fraction form
   16,450.83/24,679.89 = 7,680.96/x
3. Step 3: Cross multiply
   16,450.83x = 24,679.89 × 7,680.96
4. Step 4: Simplify right side
   16,450.83x = 189,565,247.89
5. Step 5: Solve for x
   x = 189,565,247.89/16,450.83
6. Step 6: Final answer
   x = 11,523.14