Finding the Fourth Proportional to 7,222.12, 9,967.86 and 4,567.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,222.12 : 9,967.86 = 4,567.72 : x
2. Step 2: Convert to fraction form
   7,222.12/9,967.86 = 4,567.72/x
3. Step 3: Cross multiply
   7,222.12x = 9,967.86 × 4,567.72
4. Step 4: Simplify right side
   7,222.12x = 45,530,393.48
5. Step 5: Solve for x
   x = 45,530,393.48/7,222.12
6. Step 6: Final answer
   x = 6,304.30