Finding the Fourth Proportional to 5,559.35, 8,344.72 and 3,723.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,559.35 : 8,344.72 = 3,723.28 : x
2. Step 2: Convert to fraction form
   5,559.35/8,344.72 = 3,723.28/x
3. Step 3: Cross multiply
   5,559.35x = 8,344.72 × 3,723.28
4. Step 4: Simplify right side
   5,559.35x = 31,069,698.91
5. Step 5: Solve for x
   x = 31,069,698.91/5,559.35
6. Step 6: Final answer
   x = 5,588.73