Finding the Fourth Proportional to 5,870.72, 8,100.78 and 3,512.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.72 : 8,100.78 = 3,512.54 : x
2. Step 2: Convert to fraction form
   5,870.72/8,100.78 = 3,512.54/x
3. Step 3: Cross multiply
   5,870.72x = 8,100.78 × 3,512.54
4. Step 4: Simplify right side
   5,870.72x = 28,454,313.78
5. Step 5: Solve for x
   x = 28,454,313.78/5,870.72
6. Step 6: Final answer
   x = 4,846.82