Finding the Fourth Proportional to 8,079.75, 12,113.69 and 3,081.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,079.75 : 12,113.69 = 3,081.24 : x
2. Step 2: Convert to fraction form
   8,079.75/12,113.69 = 3,081.24/x
3. Step 3: Cross multiply
   8,079.75x = 12,113.69 × 3,081.24
4. Step 4: Simplify right side
   8,079.75x = 37,325,170.77
5. Step 5: Solve for x
   x = 37,325,170.77/8,079.75
6. Step 6: Final answer
   x = 4,619.59