Finding the Fourth Proportional to 7,003.24, 9,664.42 and 3,859.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.24 : 9,664.42 = 3,859.40 : x
2. Step 2: Convert to fraction form
   7,003.24/9,664.42 = 3,859.40/x
3. Step 3: Cross multiply
   7,003.24x = 9,664.42 × 3,859.40
4. Step 4: Simplify right side
   7,003.24x = 37,298,862.55
5. Step 5: Solve for x
   x = 37,298,862.55/7,003.24
6. Step 6: Final answer
   x = 5,325.94