Finding the Fourth Proportional to 20,391.89, 30,584.55 and 5,597.35

Step by Step Solution

1. Step 1: Write the proportion equation
   20,391.89 : 30,584.55 = 5,597.35 : x
2. Step 2: Convert to fraction form
   20,391.89/30,584.55 = 5,597.35/x
3. Step 3: Cross multiply
   20,391.89x = 30,584.55 × 5,597.35
4. Step 4: Simplify right side
   20,391.89x = 171,192,430.94
5. Step 5: Solve for x
   x = 171,192,430.94/20,391.89
6. Step 6: Final answer
   x = 8,395.12