Finding the Fourth Proportional to 16,639.58, 22,974.18 and 13,467

Step by Step Solution

1. Step 1: Write the proportion equation
   16,639.58 : 22,974.18 = 13,467 : x
2. Step 2: Convert to fraction form
   16,639.58/22,974.18 = 13,467/x
3. Step 3: Cross multiply
   16,639.58x = 22,974.18 × 13,467
4. Step 4: Simplify right side
   16,639.58x = 309,393,282.06
5. Step 5: Solve for x
   x = 309,393,282.06/16,639.58
6. Step 6: Final answer
   x = 18,593.82