Finding the Fourth Proportional to 21,033.43, 31,556.72 and 6,242.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,033.43 : 31,556.72 = 6,242.42 : x
2. Step 2: Convert to fraction form
   21,033.43/31,556.72 = 6,242.42/x
3. Step 3: Cross multiply
   21,033.43x = 31,556.72 × 6,242.42
4. Step 4: Simplify right side
   21,033.43x = 196,990,394.56
5. Step 5: Solve for x
   x = 196,990,394.56/21,033.43
6. Step 6: Final answer
   x = 9,365.59