Finding the Fourth Proportional to 3,723.96, 5,589.59 and 3,706.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,723.96 : 5,589.59 = 3,706.64 : x
2. Step 2: Convert to fraction form
   3,723.96/5,589.59 = 3,706.64/x
3. Step 3: Cross multiply
   3,723.96x = 5,589.59 × 3,706.64
4. Step 4: Simplify right side
   3,723.96x = 20,718,551.40
5. Step 5: Solve for x
   x = 20,718,551.40/3,723.96
6. Step 6: Final answer
   x = 5,563.58