Finding the Fourth Proportional to 8,451.96, 12,680.82 and 4,761.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,451.96 : 12,680.82 = 4,761.42 : x
2. Step 2: Convert to fraction form
   8,451.96/12,680.82 = 4,761.42/x
3. Step 3: Cross multiply
   8,451.96x = 12,680.82 × 4,761.42
4. Step 4: Simplify right side
   8,451.96x = 60,378,709.96
5. Step 5: Solve for x
   x = 60,378,709.96/8,451.96
6. Step 6: Final answer
   x = 7,143.75