Finding the Fourth Proportional to 10,222.78, 14,103.44 and 5,745.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,222.78 : 14,103.44 = 5,745.50 : x
2. Step 2: Convert to fraction form
   10,222.78/14,103.44 = 5,745.50/x
3. Step 3: Cross multiply
   10,222.78x = 14,103.44 × 5,745.50
4. Step 4: Simplify right side
   10,222.78x = 81,031,314.52
5. Step 5: Solve for x
   x = 81,031,314.52/10,222.78
6. Step 6: Final answer
   x = 7,926.54