Finding the Fourth Proportional to 8,831.33, 12,182.16 and 5,513.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,831.33 : 12,182.16 = 5,513.57 : x
2. Step 2: Convert to fraction form
   8,831.33/12,182.16 = 5,513.57/x
3. Step 3: Cross multiply
   8,831.33x = 12,182.16 × 5,513.57
4. Step 4: Simplify right side
   8,831.33x = 67,167,103.43
5. Step 5: Solve for x
   x = 67,167,103.43/8,831.33
6. Step 6: Final answer
   x = 7,605.55