Finding the Fourth Proportional to 8,215.97, 12,322.73 and 3,020.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,215.97 : 12,322.73 = 3,020.63 : x
2. Step 2: Convert to fraction form
   8,215.97/12,322.73 = 3,020.63/x
3. Step 3: Cross multiply
   8,215.97x = 12,322.73 × 3,020.63
4. Step 4: Simplify right side
   8,215.97x = 37,222,353.86
5. Step 5: Solve for x
   x = 37,222,353.86/8,215.97
6. Step 6: Final answer
   x = 4,530.49