Finding the Fourth Proportional to 8,868.28, 13,303.78 and 2,629.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.28 : 13,303.78 = 2,629.25 : x
2. Step 2: Convert to fraction form
   8,868.28/13,303.78 = 2,629.25/x
3. Step 3: Cross multiply
   8,868.28x = 13,303.78 × 2,629.25
4. Step 4: Simplify right side
   8,868.28x = 34,978,990.25
5. Step 5: Solve for x
   x = 34,978,990.25/8,868.28
6. Step 6: Final answer
   x = 3,944.28