Finding the Fourth Proportional to 8,315.38, 12,477.62 and 3,571.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.38 : 12,477.62 = 3,571.12 : x
2. Step 2: Convert to fraction form
   8,315.38/12,477.62 = 3,571.12/x
3. Step 3: Cross multiply
   8,315.38x = 12,477.62 × 3,571.12
4. Step 4: Simplify right side
   8,315.38x = 44,559,078.33
5. Step 5: Solve for x
   x = 44,559,078.33/8,315.38
6. Step 6: Final answer
   x = 5,358.63