Finding the Fourth Proportional to 7,002.79, 9,662.97 and 3,859.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.79 : 9,662.97 = 3,859.18 : x
2. Step 2: Convert to fraction form
   7,002.79/9,662.97 = 3,859.18/x
3. Step 3: Cross multiply
   7,002.79x = 9,662.97 × 3,859.18
4. Step 4: Simplify right side
   7,002.79x = 37,291,140.56
5. Step 5: Solve for x
   x = 37,291,140.56/7,002.79
6. Step 6: Final answer
   x = 5,325.18