Finding the Fourth Proportional to 8,306.31, 12,456.38 and 3,374.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,306.31 : 12,456.38 = 3,374.29 : x
2. Step 2: Convert to fraction form
   8,306.31/12,456.38 = 3,374.29/x
3. Step 3: Cross multiply
   8,306.31x = 12,456.38 × 3,374.29
4. Step 4: Simplify right side
   8,306.31x = 42,031,462.48
5. Step 5: Solve for x
   x = 42,031,462.48/8,306.31
6. Step 6: Final answer
   x = 5,060.18