Finding the Fourth Proportional to 8,981.43, 12,395.96 and 5,627.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,981.43 : 12,395.96 = 5,627.12 : x
2. Step 2: Convert to fraction form
   8,981.43/12,395.96 = 5,627.12/x
3. Step 3: Cross multiply
   8,981.43x = 12,395.96 × 5,627.12
4. Step 4: Simplify right side
   8,981.43x = 69,753,570.98
5. Step 5: Solve for x
   x = 69,753,570.98/8,981.43
6. Step 6: Final answer
   x = 7,766.42