Finding the Fourth Proportional to 8,281.05, 12,433.72 and 5,174.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,281.05 : 12,433.72 = 5,174.29 : x
2. Step 2: Convert to fraction form
   8,281.05/12,433.72 = 5,174.29/x
3. Step 3: Cross multiply
   8,281.05x = 12,433.72 × 5,174.29
4. Step 4: Simplify right side
   8,281.05x = 64,335,673.06
5. Step 5: Solve for x
   x = 64,335,673.06/8,281.05
6. Step 6: Final answer
   x = 7,769.02