Finding the Fourth Proportional to 5,870.22, 8,100.71 and 3,217.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.22 : 8,100.71 = 3,217.60 : x
2. Step 2: Convert to fraction form
   5,870.22/8,100.71 = 3,217.60/x
3. Step 3: Cross multiply
   5,870.22x = 8,100.71 × 3,217.60
4. Step 4: Simplify right side
   5,870.22x = 26,064,844.50
5. Step 5: Solve for x
   x = 26,064,844.50/5,870.22
6. Step 6: Final answer
   x = 4,440.18