Finding the Fourth Proportional to 8,456.32, 12,684.12 and 2,612.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,456.32 : 12,684.12 = 2,612.76 : x
2. Step 2: Convert to fraction form
   8,456.32/12,684.12 = 2,612.76/x
3. Step 3: Cross multiply
   8,456.32x = 12,684.12 × 2,612.76
4. Step 4: Simplify right side
   8,456.32x = 33,140,561.37
5. Step 5: Solve for x
   x = 33,140,561.37/8,456.32
6. Step 6: Final answer
   x = 3,919.03