Finding the Fourth Proportional to 5,086.50, 7,019.28 and 2,848.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086.50 : 7,019.28 = 2,848.35 : x
2. Step 2: Convert to fraction form
   5,086.50/7,019.28 = 2,848.35/x
3. Step 3: Cross multiply
   5,086.50x = 7,019.28 × 2,848.35
4. Step 4: Simplify right side
   5,086.50x = 19,993,390.65
5. Step 5: Solve for x
   x = 19,993,390.65/5,086.50
6. Step 6: Final answer
   x = 3,930.68