Finding the Fourth Proportional to 7,786.72, 10,745.68 and 4,250

Step by Step Solution

1. Step 1: Write the proportion equation
   7,786.72 : 10,745.68 = 4,250 : x
2. Step 2: Convert to fraction form
   7,786.72/10,745.68 = 4,250/x
3. Step 3: Cross multiply
   7,786.72x = 10,745.68 × 4,250
4. Step 4: Simplify right side
   7,786.72x = 45,669,140
5. Step 5: Solve for x
   x = 45,669,140/7,786.72
6. Step 6: Final answer
   x = 5,865.00