Finding the Fourth Proportional to 8,315.92, 12,466.54 and 3,389.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.92 : 12,466.54 = 3,389.68 : x
2. Step 2: Convert to fraction form
   8,315.92/12,466.54 = 3,389.68/x
3. Step 3: Cross multiply
   8,315.92x = 12,466.54 × 3,389.68
4. Step 4: Simplify right side
   8,315.92x = 42,257,581.31
5. Step 5: Solve for x
   x = 42,257,581.31/8,315.92
6. Step 6: Final answer
   x = 5,081.53