Finding the Fourth Proportional to 8,306.10, 12,458.88 and 3,374.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,306.10 : 12,458.88 = 3,374.28 : x
2. Step 2: Convert to fraction form
   8,306.10/12,458.88 = 3,374.28/x
3. Step 3: Cross multiply
   8,306.10x = 12,458.88 × 3,374.28
4. Step 4: Simplify right side
   8,306.10x = 42,039,749.61
5. Step 5: Solve for x
   x = 42,039,749.61/8,306.10
6. Step 6: Final answer
   x = 5,061.31