Finding the Fourth Proportional to 7,007.13, 9,669.78 and 3,863.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,007.13 : 9,669.78 = 3,863.25 : x
2. Step 2: Convert to fraction form
   7,007.13/9,669.78 = 3,863.25/x
3. Step 3: Cross multiply
   7,007.13x = 9,669.78 × 3,863.25
4. Step 4: Simplify right side
   7,007.13x = 37,356,777.59
5. Step 5: Solve for x
   x = 37,356,777.59/7,007.13
6. Step 6: Final answer
   x = 5,331.25