Finding the Fourth Proportional to 5,870.92, 8,760.84 and 5,247.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.92 : 8,760.84 = 5,247.76 : x
2. Step 2: Convert to fraction form
   5,870.92/8,760.84 = 5,247.76/x
3. Step 3: Cross multiply
   5,870.92x = 8,760.84 × 5,247.76
4. Step 4: Simplify right side
   5,870.92x = 45,974,785.72
5. Step 5: Solve for x
   x = 45,974,785.72/5,870.92
6. Step 6: Final answer
   x = 7,830.93