Finding the Fourth Proportional to 7,223.78, 9,969.28 and 4,238.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,223.78 : 9,969.28 = 4,238.52 : x
2. Step 2: Convert to fraction form
   7,223.78/9,969.28 = 4,238.52/x
3. Step 3: Cross multiply
   7,223.78x = 9,969.28 × 4,238.52
4. Step 4: Simplify right side
   7,223.78x = 42,254,992.67
5. Step 5: Solve for x
   x = 42,254,992.67/7,223.78
6. Step 6: Final answer
   x = 5,849.43