Finding the Fourth Proportional to 5,758.71, 7,946.82 and 3,519.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,758.71 : 7,946.82 = 3,519.78 : x
2. Step 2: Convert to fraction form
   5,758.71/7,946.82 = 3,519.78/x
3. Step 3: Cross multiply
   5,758.71x = 7,946.82 × 3,519.78
4. Step 4: Simplify right side
   5,758.71x = 27,971,058.10
5. Step 5: Solve for x
   x = 27,971,058.10/5,758.71
6. Step 6: Final answer
   x = 4,857.17