Finding the Fourth Proportional to 16,196.20, 22,317.45 and 12,419.17

Step by Step Solution

1. Step 1: Write the proportion equation
   16,196.20 : 22,317.45 = 12,419.17 : x
2. Step 2: Convert to fraction form
   16,196.20/22,317.45 = 12,419.17/x
3. Step 3: Cross multiply
   16,196.20x = 22,317.45 × 12,419.17
4. Step 4: Simplify right side
   16,196.20x = 277,164,205.52
5. Step 5: Solve for x
   x = 277,164,205.52/16,196.20
6. Step 6: Final answer
   x = 17,112.92