Finding the Fourth Proportional to 7,003.69, 9,665.19 and 3,859.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.69 : 9,665.19 = 3,859.88 : x
2. Step 2: Convert to fraction form
   7,003.69/9,665.19 = 3,859.88/x
3. Step 3: Cross multiply
   7,003.69x = 9,665.19 × 3,859.88
4. Step 4: Simplify right side
   7,003.69x = 37,306,425.25
5. Step 5: Solve for x
   x = 37,306,425.25/7,003.69
6. Step 6: Final answer
   x = 5,326.68