Finding the Fourth Proportional to 16,647, 22,974.32 and 9,196.44

Step by Step Solution

1. Step 1: Write the proportion equation
   16,647 : 22,974.32 = 9,196.44 : x
2. Step 2: Convert to fraction form
   16,647/22,974.32 = 9,196.44/x
3. Step 3: Cross multiply
   16,647x = 22,974.32 × 9,196.44
4. Step 4: Simplify right side
   16,647x = 211,281,955.42
5. Step 5: Solve for x
   x = 211,281,955.42/16,647
6. Step 6: Final answer
   x = 12,691.89