Finding the Fourth Proportional to 8,245.31, 12,371.04 and 3,314.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,245.31 : 12,371.04 = 3,314.31 : x
2. Step 2: Convert to fraction form
   8,245.31/12,371.04 = 3,314.31/x
3. Step 3: Cross multiply
   8,245.31x = 12,371.04 × 3,314.31
4. Step 4: Simplify right side
   8,245.31x = 41,001,461.58
5. Step 5: Solve for x
   x = 41,001,461.58/8,245.31
6. Step 6: Final answer
   x = 4,972.70