Finding the Fourth Proportional to 5,664.95, 8,486.39 and 3,711.23

Step by Step Solution

1. Step 1: Write the proportion equation
   5,664.95 : 8,486.39 = 3,711.23 : x
2. Step 2: Convert to fraction form
   5,664.95/8,486.39 = 3,711.23/x
3. Step 3: Cross multiply
   5,664.95x = 8,486.39 × 3,711.23
4. Step 4: Simplify right side
   5,664.95x = 31,494,970.69
5. Step 5: Solve for x
   x = 31,494,970.69/5,664.95
6. Step 6: Final answer
   x = 5,559.62