Finding the Fourth Proportional to 8,522.56, 12,785.76 and 3,329.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,522.56 : 12,785.76 = 3,329.92 : x
2. Step 2: Convert to fraction form
   8,522.56/12,785.76 = 3,329.92/x
3. Step 3: Cross multiply
   8,522.56x = 12,785.76 × 3,329.92
4. Step 4: Simplify right side
   8,522.56x = 42,575,557.94
5. Step 5: Solve for x
   x = 42,575,557.94/8,522.56
6. Step 6: Final answer
   x = 4,995.63