Finding the Fourth Proportional to 8,519.42, 12,786.46 and 3,328.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,519.42 : 12,786.46 = 3,328.94 : x
2. Step 2: Convert to fraction form
   8,519.42/12,786.46 = 3,328.94/x
3. Step 3: Cross multiply
   8,519.42x = 12,786.46 × 3,328.94
4. Step 4: Simplify right side
   8,519.42x = 42,565,358.15
5. Step 5: Solve for x
   x = 42,565,358.15/8,519.42
6. Step 6: Final answer
   x = 4,996.27