Finding the Fourth Proportional to 7,003.38, 9,664.60 and 3,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.38 : 9,664.60 = 3,859.50 : x
2. Step 2: Convert to fraction form
   7,003.38/9,664.60 = 3,859.50/x
3. Step 3: Cross multiply
   7,003.38x = 9,664.60 × 3,859.50
4. Step 4: Simplify right side
   7,003.38x = 37,300,523.70
5. Step 5: Solve for x
   x = 37,300,523.70/7,003.38
6. Step 6: Final answer
   x = 5,326.07