Finding the Fourth Proportional to 8,227.34, 12,351.20 and 5,471.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,227.34 : 12,351.20 = 5,471.72 : x
2. Step 2: Convert to fraction form
   8,227.34/12,351.20 = 5,471.72/x
3. Step 3: Cross multiply
   8,227.34x = 12,351.20 × 5,471.72
4. Step 4: Simplify right side
   8,227.34x = 67,582,218.95
5. Step 5: Solve for x
   x = 67,582,218.95/8,227.34
6. Step 6: Final answer
   x = 8,214.35