Finding the Fourth Proportional to 5,108.82, 7,050.18 and 2,870.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,108.82 : 7,050.18 = 2,870.70 : x
2. Step 2: Convert to fraction form
   5,108.82/7,050.18 = 2,870.70/x
3. Step 3: Cross multiply
   5,108.82x = 7,050.18 × 2,870.70
4. Step 4: Simplify right side
   5,108.82x = 20,238,951.73
5. Step 5: Solve for x
   x = 20,238,951.73/5,108.82
6. Step 6: Final answer
   x = 3,961.57