Finding the Fourth Proportional to 7,004.40, 9,665.50 and 3,860.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,004.40 : 9,665.50 = 3,860.59 : x
2. Step 2: Convert to fraction form
   7,004.40/9,665.50 = 3,860.59/x
3. Step 3: Cross multiply
   7,004.40x = 9,665.50 × 3,860.59
4. Step 4: Simplify right side
   7,004.40x = 37,314,465.01
5. Step 5: Solve for x
   x = 37,314,465.01/7,004.40
6. Step 6: Final answer
   x = 5,327.29