Finding the Fourth Proportional to 8,339.24, 12,504.76 and 3,407.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,339.24 : 12,504.76 = 3,407.56 : x
2. Step 2: Convert to fraction form
   8,339.24/12,504.76 = 3,407.56/x
3. Step 3: Cross multiply
   8,339.24x = 12,504.76 × 3,407.56
4. Step 4: Simplify right side
   8,339.24x = 42,610,680.20
5. Step 5: Solve for x
   x = 42,610,680.20/8,339.24
6. Step 6: Final answer
   x = 5,109.66