Finding the Fourth Proportional to 8,314.31, 12,473.81 and 3,387.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,314.31 : 12,473.81 = 3,387.49 : x
2. Step 2: Convert to fraction form
   8,314.31/12,473.81 = 3,387.49/x
3. Step 3: Cross multiply
   8,314.31x = 12,473.81 × 3,387.49
4. Step 4: Simplify right side
   8,314.31x = 42,254,883.92
5. Step 5: Solve for x
   x = 42,254,883.92/8,314.31
6. Step 6: Final answer
   x = 5,082.19