Finding the Fourth Proportional to 8,215.10, 12,323.88 and 3,020.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,215.10 : 12,323.88 = 3,020.58 : x
2. Step 2: Convert to fraction form
   8,215.10/12,323.88 = 3,020.58/x
3. Step 3: Cross multiply
   8,215.10x = 12,323.88 × 3,020.58
4. Step 4: Simplify right side
   8,215.10x = 37,225,265.45
5. Step 5: Solve for x
   x = 37,225,265.45/8,215.10
6. Step 6: Final answer
   x = 4,531.32