Finding the Fourth Proportional to 11,441.33, 17,161.82 and 3,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,441.33 : 17,161.82 = 3,121.50 : x
2. Step 2: Convert to fraction form
   11,441.33/17,161.82 = 3,121.50/x
3. Step 3: Cross multiply
   11,441.33x = 17,161.82 × 3,121.50
4. Step 4: Simplify right side
   11,441.33x = 53,570,605.52
5. Step 5: Solve for x
   x = 53,570,605.52/11,441.33
6. Step 6: Final answer
   x = 4,682.20