Finding the Fourth Proportional to 16,196.45, 22,361.42 and 13,219.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,196.45 : 22,361.42 = 13,219.39 : x
2. Step 2: Convert to fraction form
   16,196.45/22,361.42 = 13,219.39/x
3. Step 3: Cross multiply
   16,196.45x = 22,361.42 × 13,219.39
4. Step 4: Simplify right side
   16,196.45x = 295,604,331.93
5. Step 5: Solve for x
   x = 295,604,331.93/16,196.45
6. Step 6: Final answer
   x = 18,251.18