Finding the Fourth Proportional to 8,055.31, 12,079.12 and 3,310.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,055.31 : 12,079.12 = 3,310.72 : x
2. Step 2: Convert to fraction form
   8,055.31/12,079.12 = 3,310.72/x
3. Step 3: Cross multiply
   8,055.31x = 12,079.12 × 3,310.72
4. Step 4: Simplify right side
   8,055.31x = 39,990,622.64
5. Step 5: Solve for x
   x = 39,990,622.64/8,055.31
6. Step 6: Final answer
   x = 4,964.51