Finding the Fourth Proportional to 8,323.52, 12,479.58 and 2,776.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,323.52 : 12,479.58 = 2,776.30 : x
2. Step 2: Convert to fraction form
   8,323.52/12,479.58 = 2,776.30/x
3. Step 3: Cross multiply
   8,323.52x = 12,479.58 × 2,776.30
4. Step 4: Simplify right side
   8,323.52x = 34,647,057.95
5. Step 5: Solve for x
   x = 34,647,057.95/8,323.52
6. Step 6: Final answer
   x = 4,162.55