Finding the Fourth Proportional to 4,139.62, 5,708.01 and 3,018.58

Step by Step Solution

1. Step 1: Write the proportion equation
   4,139.62 : 5,708.01 = 3,018.58 : x
2. Step 2: Convert to fraction form
   4,139.62/5,708.01 = 3,018.58/x
3. Step 3: Cross multiply
   4,139.62x = 5,708.01 × 3,018.58
4. Step 4: Simplify right side
   4,139.62x = 17,230,084.83
5. Step 5: Solve for x
   x = 17,230,084.83/4,139.62
6. Step 6: Final answer
   x = 4,162.24