Finding the Fourth Proportional to 4,020.89, 5,550.35 and 3,600.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,020.89 : 5,550.35 = 3,600.50 : x
2. Step 2: Convert to fraction form
   4,020.89/5,550.35 = 3,600.50/x
3. Step 3: Cross multiply
   4,020.89x = 5,550.35 × 3,600.50
4. Step 4: Simplify right side
   4,020.89x = 19,983,989.42
5. Step 5: Solve for x
   x = 19,983,989.42/4,020.89
6. Step 6: Final answer
   x = 4,970.05