Finding the Fourth Proportional to 3,910.23, 5,839.77 and 3,131.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.23 : 5,839.77 = 3,131.42 : x
2. Step 2: Convert to fraction form
   3,910.23/5,839.77 = 3,131.42/x
3. Step 3: Cross multiply
   3,910.23x = 5,839.77 × 3,131.42
4. Step 4: Simplify right side
   3,910.23x = 18,286,743.37
5. Step 5: Solve for x
   x = 18,286,743.37/3,910.23
6. Step 6: Final answer
   x = 4,676.64