Finding the Fourth Proportional to 7,002.16, 9,662.86 and 3,858.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.16 : 9,662.86 = 3,858.28 : x
2. Step 2: Convert to fraction form
   7,002.16/9,662.86 = 3,858.28/x
3. Step 3: Cross multiply
   7,002.16x = 9,662.86 × 3,858.28
4. Step 4: Simplify right side
   7,002.16x = 37,282,019.48
5. Step 5: Solve for x
   x = 37,282,019.48/7,002.16
6. Step 6: Final answer
   x = 5,324.36