Finding the Fourth Proportional to 9,440.78, 13,028.22 and 5,249

Step by Step Solution

1. Step 1: Write the proportion equation
   9,440.78 : 13,028.22 = 5,249 : x
2. Step 2: Convert to fraction form
   9,440.78/13,028.22 = 5,249/x
3. Step 3: Cross multiply
   9,440.78x = 13,028.22 × 5,249
4. Step 4: Simplify right side
   9,440.78x = 68,385,126.78
5. Step 5: Solve for x
   x = 68,385,126.78/9,440.78
6. Step 6: Final answer
   x = 7,243.59