Finding the Fourth Proportional to 8,215.02, 12,313.89 and 3,018.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,215.02 : 12,313.89 = 3,018.06 : x
2. Step 2: Convert to fraction form
   8,215.02/12,313.89 = 3,018.06/x
3. Step 3: Cross multiply
   8,215.02x = 12,313.89 × 3,018.06
4. Step 4: Simplify right side
   8,215.02x = 37,164,058.85
5. Step 5: Solve for x
   x = 37,164,058.85/8,215.02
6. Step 6: Final answer
   x = 4,523.92