Finding the Fourth Proportional to 10,223.91, 15,326.75 and 3,648.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,223.91 : 15,326.75 = 3,648.63 : x
2. Step 2: Convert to fraction form
   10,223.91/15,326.75 = 3,648.63/x
3. Step 3: Cross multiply
   10,223.91x = 15,326.75 × 3,648.63
4. Step 4: Simplify right side
   10,223.91x = 55,921,621.61
5. Step 5: Solve for x
   x = 55,921,621.61/10,223.91
6. Step 6: Final answer
   x = 5,469.69