Finding the Fourth Proportional to 6,870.52, 10,280.25 and 4,098.70

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.52 : 10,280.25 = 4,098.70 : x
2. Step 2: Convert to fraction form
   6,870.52/10,280.25 = 4,098.70/x
3. Step 3: Cross multiply
   6,870.52x = 10,280.25 × 4,098.70
4. Step 4: Simplify right side
   6,870.52x = 42,135,660.68
5. Step 5: Solve for x
   x = 42,135,660.68/6,870.52
6. Step 6: Final answer
   x = 6,132.82