Finding the Fourth Proportional to 7,020.30, 9,687.87 and 3,833.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,020.30 : 9,687.87 = 3,833.69 : x
2. Step 2: Convert to fraction form
   7,020.30/9,687.87 = 3,833.69/x
3. Step 3: Cross multiply
   7,020.30x = 9,687.87 × 3,833.69
4. Step 4: Simplify right side
   7,020.30x = 37,140,314.56
5. Step 5: Solve for x
   x = 37,140,314.56/7,020.30
6. Step 6: Final answer
   x = 5,290.42