Finding the Fourth Proportional to 5,862.76, 8,090.59 and 3,210.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,862.76 : 8,090.59 = 3,210.15 : x
2. Step 2: Convert to fraction form
   5,862.76/8,090.59 = 3,210.15/x
3. Step 3: Cross multiply
   5,862.76x = 8,090.59 × 3,210.15
4. Step 4: Simplify right side
   5,862.76x = 25,972,007.49
5. Step 5: Solve for x
   x = 25,972,007.49/5,862.76
6. Step 6: Final answer
   x = 4,430.00