Finding the Fourth Proportional to 11,105.65, 16,661.36 and 3,314.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.65 : 16,661.36 = 3,314.46 : x
2. Step 2: Convert to fraction form
   11,105.65/16,661.36 = 3,314.46/x
3. Step 3: Cross multiply
   11,105.65x = 16,661.36 × 3,314.46
4. Step 4: Simplify right side
   11,105.65x = 55,223,411.27
5. Step 5: Solve for x
   x = 55,223,411.27/11,105.65
6. Step 6: Final answer
   x = 4,972.55