Finding the Fourth Proportional to 16,085.44, 22,196.78 and 8,915.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,085.44 : 22,196.78 = 8,915.28 : x
2. Step 2: Convert to fraction form
   16,085.44/22,196.78 = 8,915.28/x
3. Step 3: Cross multiply
   16,085.44x = 22,196.78 × 8,915.28
4. Step 4: Simplify right side
   16,085.44x = 197,890,508.80
5. Step 5: Solve for x
   x = 197,890,508.80/16,085.44
6. Step 6: Final answer
   x = 12,302.46