Finding the Fourth Proportional to 7,003.59, 9,664.92 and 3,859.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.59 : 9,664.92 = 3,859.79 : x
2. Step 2: Convert to fraction form
   7,003.59/9,664.92 = 3,859.79/x
3. Step 3: Cross multiply
   7,003.59x = 9,664.92 × 3,859.79
4. Step 4: Simplify right side
   7,003.59x = 37,304,513.24
5. Step 5: Solve for x
   x = 37,304,513.24/7,003.59
6. Step 6: Final answer
   x = 5,326.48