Finding the Fourth Proportional to 4,127.56, 5,703.82 and 3,131.06

Step by Step Solution

1. Step 1: Write the proportion equation
   4,127.56 : 5,703.82 = 3,131.06 : x
2. Step 2: Convert to fraction form
   4,127.56/5,703.82 = 3,131.06/x
3. Step 3: Cross multiply
   4,127.56x = 5,703.82 × 3,131.06
4. Step 4: Simplify right side
   4,127.56x = 17,858,966.30
5. Step 5: Solve for x
   x = 17,858,966.30/4,127.56
6. Step 6: Final answer
   x = 4,326.76