Finding the Fourth Proportional to 7,209.50, 9,948.74 and 4,022.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,209.50 : 9,948.74 = 4,022.22 : x
2. Step 2: Convert to fraction form
   7,209.50/9,948.74 = 4,022.22/x
3. Step 3: Cross multiply
   7,209.50x = 9,948.74 × 4,022.22
4. Step 4: Simplify right side
   7,209.50x = 40,016,000.89
5. Step 5: Solve for x
   x = 40,016,000.89/7,209.50
6. Step 6: Final answer
   x = 5,550.46