Finding the Fourth Proportional to 8,983.56, 12,397.02 and 5,628.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,983.56 : 12,397.02 = 5,628.18 : x
2. Step 2: Convert to fraction form
   8,983.56/12,397.02 = 5,628.18/x
3. Step 3: Cross multiply
   8,983.56x = 12,397.02 × 5,628.18
4. Step 4: Simplify right side
   8,983.56x = 69,772,732.89
5. Step 5: Solve for x
   x = 69,772,732.89/8,983.56
6. Step 6: Final answer
   x = 7,766.71