Finding the Fourth Proportional to 7,222.23, 9,964.42 and 4,238.19

Step by Step Solution

1. Step 1: Write the proportion equation
   7,222.23 : 9,964.42 = 4,238.19 : x
2. Step 2: Convert to fraction form
   7,222.23/9,964.42 = 4,238.19/x
3. Step 3: Cross multiply
   7,222.23x = 9,964.42 × 4,238.19
4. Step 4: Simplify right side
   7,222.23x = 42,231,094.60
5. Step 5: Solve for x
   x = 42,231,094.60/7,222.23
6. Step 6: Final answer
   x = 5,847.38