Finding the Fourth Proportional to 8,340.83, 12,511.33 and 3,407.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,340.83 : 12,511.33 = 3,407.10 : x
2. Step 2: Convert to fraction form
   8,340.83/12,511.33 = 3,407.10/x
3. Step 3: Cross multiply
   8,340.83x = 12,511.33 × 3,407.10
4. Step 4: Simplify right side
   8,340.83x = 42,627,289.89
5. Step 5: Solve for x
   x = 42,627,289.89/8,340.83
6. Step 6: Final answer
   x = 5,110.68