Finding the Fourth Proportional to 12,215.27, 16,872.89 and 9,035.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,215.27 : 16,872.89 = 9,035.03 : x
2. Step 2: Convert to fraction form
   12,215.27/16,872.89 = 9,035.03/x
3. Step 3: Cross multiply
   12,215.27x = 16,872.89 × 9,035.03
4. Step 4: Simplify right side
   12,215.27x = 152,446,937.80
5. Step 5: Solve for x
   x = 152,446,937.80/12,215.27
6. Step 6: Final answer
   x = 12,480.04