Finding the Fourth Proportional to 11,284.72, 16,920.98 and 3,386.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,284.72 : 16,920.98 = 3,386.16 : x
2. Step 2: Convert to fraction form
   11,284.72/16,920.98 = 3,386.16/x
3. Step 3: Cross multiply
   11,284.72x = 16,920.98 × 3,386.16
4. Step 4: Simplify right side
   11,284.72x = 57,297,145.64
5. Step 5: Solve for x
   x = 57,297,145.64/11,284.72
6. Step 6: Final answer
   x = 5,077.41