Finding the Fourth Proportional to 3,540.07, 5,279.20 and 3,103.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,540.07 : 5,279.20 = 3,103.35 : x
2. Step 2: Convert to fraction form
   3,540.07/5,279.20 = 3,103.35/x
3. Step 3: Cross multiply
   3,540.07x = 5,279.20 × 3,103.35
4. Step 4: Simplify right side
   3,540.07x = 16,383,205.32
5. Step 5: Solve for x
   x = 16,383,205.32/3,540.07
6. Step 6: Final answer
   x = 4,627.93