Finding the Fourth Proportional to 5,870.10, 8,100.81 and 3,217.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.10 : 8,100.81 = 3,217.45 : x
2. Step 2: Convert to fraction form
   5,870.10/8,100.81 = 3,217.45/x
3. Step 3: Cross multiply
   5,870.10x = 8,100.81 × 3,217.45
4. Step 4: Simplify right side
   5,870.10x = 26,063,951.13
5. Step 5: Solve for x
   x = 26,063,951.13/5,870.10
6. Step 6: Final answer
   x = 4,440.12