Finding the Fourth Proportional to 5,662.10, 8,491.33 and 3,686.51

Step by Step Solution

1. Step 1: Write the proportion equation
   5,662.10 : 8,491.33 = 3,686.51 : x
2. Step 2: Convert to fraction form
   5,662.10/8,491.33 = 3,686.51/x
3. Step 3: Cross multiply
   5,662.10x = 8,491.33 × 3,686.51
4. Step 4: Simplify right side
   5,662.10x = 31,303,398.79
5. Step 5: Solve for x
   x = 31,303,398.79/5,662.10
6. Step 6: Final answer
   x = 5,528.58