Finding the Fourth Proportional to 11,279.80, 16,915.56 and 3,882.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,279.80 : 16,915.56 = 3,882.16 : x
2. Step 2: Convert to fraction form
   11,279.80/16,915.56 = 3,882.16/x
3. Step 3: Cross multiply
   11,279.80x = 16,915.56 × 3,882.16
4. Step 4: Simplify right side
   11,279.80x = 65,668,910.41
5. Step 5: Solve for x
   x = 65,668,910.41/11,279.80
6. Step 6: Final answer
   x = 5,821.82