Finding the Fourth Proportional to 8,308.31, 12,456.31 and 5,020.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.31 : 12,456.31 = 5,020.63 : x
2. Step 2: Convert to fraction form
   8,308.31/12,456.31 = 5,020.63/x
3. Step 3: Cross multiply
   8,308.31x = 12,456.31 × 5,020.63
4. Step 4: Simplify right side
   8,308.31x = 62,538,523.68
5. Step 5: Solve for x
   x = 62,538,523.68/8,308.31
6. Step 6: Final answer
   x = 7,527.23