Finding the Fourth Proportional to 8,451.76, 12,672.24 and 3,524.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,451.76 : 12,672.24 = 3,524.80 : x
2. Step 2: Convert to fraction form
   8,451.76/12,672.24 = 3,524.80/x
3. Step 3: Cross multiply
   8,451.76x = 12,672.24 × 3,524.80
4. Step 4: Simplify right side
   8,451.76x = 44,667,111.55
5. Step 5: Solve for x
   x = 44,667,111.55/8,451.76
6. Step 6: Final answer
   x = 5,284.95