Finding the Fourth Proportional to 7,021.82, 9,690.03 and 3,835.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,021.82 : 9,690.03 = 3,835.10 : x
2. Step 2: Convert to fraction form
   7,021.82/9,690.03 = 3,835.10/x
3. Step 3: Cross multiply
   7,021.82x = 9,690.03 × 3,835.10
4. Step 4: Simplify right side
   7,021.82x = 37,162,258.28
5. Step 5: Solve for x
   x = 37,162,258.28/7,021.82
6. Step 6: Final answer
   x = 5,292.40