Finding the Fourth Proportional to 8,215.24, 12,315.50 and 3,017.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,215.24 : 12,315.50 = 3,017.48 : x
2. Step 2: Convert to fraction form
   8,215.24/12,315.50 = 3,017.48/x
3. Step 3: Cross multiply
   8,215.24x = 12,315.50 × 3,017.48
4. Step 4: Simplify right side
   8,215.24x = 37,161,774.94
5. Step 5: Solve for x
   x = 37,161,774.94/8,215.24
6. Step 6: Final answer
   x = 4,523.52