Finding the Fourth Proportional to 8,306.31, 12,453.31 and 5,018.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,306.31 : 12,453.31 = 5,018.63 : x
2. Step 2: Convert to fraction form
   8,306.31/12,453.31 = 5,018.63/x
3. Step 3: Cross multiply
   8,306.31x = 12,453.31 × 5,018.63
4. Step 4: Simplify right side
   8,306.31x = 62,498,614.83
5. Step 5: Solve for x
   x = 62,498,614.83/8,306.31
6. Step 6: Final answer
   x = 7,524.23