Finding the Fourth Proportional to 9,648.30, 14,470.83 and 2,721.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,648.30 : 14,470.83 = 2,721.18 : x
2. Step 2: Convert to fraction form
   9,648.30/14,470.83 = 2,721.18/x
3. Step 3: Cross multiply
   9,648.30x = 14,470.83 × 2,721.18
4. Step 4: Simplify right side
   9,648.30x = 39,377,733.18
5. Step 5: Solve for x
   x = 39,377,733.18/9,648.30
6. Step 6: Final answer
   x = 4,081.31