Finding the Fourth Proportional to 7,003.02, 9,664.60 and 3,859.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.02 : 9,664.60 = 3,859.20 : x
2. Step 2: Convert to fraction form
   7,003.02/9,664.60 = 3,859.20/x
3. Step 3: Cross multiply
   7,003.02x = 9,664.60 × 3,859.20
4. Step 4: Simplify right side
   7,003.02x = 37,297,624.32
5. Step 5: Solve for x
   x = 37,297,624.32/7,003.02
6. Step 6: Final answer
   x = 5,325.93