Finding the Fourth Proportional to 8,003.43, 12,005.42 and 2,160.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.43 : 12,005.42 = 2,160.18 : x
2. Step 2: Convert to fraction form
   8,003.43/12,005.42 = 2,160.18/x
3. Step 3: Cross multiply
   8,003.43x = 12,005.42 × 2,160.18
4. Step 4: Simplify right side
   8,003.43x = 25,933,857.37
5. Step 5: Solve for x
   x = 25,933,857.37/8,003.43
6. Step 6: Final answer
   x = 3,240.34