Finding the Fourth Proportional to 9,211.98, 13,821.21 and 3,369.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.98 : 13,821.21 = 3,369.18 : x
2. Step 2: Convert to fraction form
   9,211.98/13,821.21 = 3,369.18/x
3. Step 3: Cross multiply
   9,211.98x = 13,821.21 × 3,369.18
4. Step 4: Simplify right side
   9,211.98x = 46,566,144.31
5. Step 5: Solve for x
   x = 46,566,144.31/9,211.98
6. Step 6: Final answer
   x = 5,054.95