Finding the Fourth Proportional to 11,211.42, 16,819.35 and 3,314.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,211.42 : 16,819.35 = 3,314.09 : x
2. Step 2: Convert to fraction form
   11,211.42/16,819.35 = 3,314.09/x
3. Step 3: Cross multiply
   11,211.42x = 16,819.35 × 3,314.09
4. Step 4: Simplify right side
   11,211.42x = 55,740,755.54
5. Step 5: Solve for x
   x = 55,740,755.54/11,211.42
6. Step 6: Final answer
   x = 4,971.78