Finding the Fourth Proportional to 22,267.05, 30,728.54 and 12,196.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,267.05 : 30,728.54 = 12,196.12 : x
2. Step 2: Convert to fraction form
   22,267.05/30,728.54 = 12,196.12/x
3. Step 3: Cross multiply
   22,267.05x = 30,728.54 × 12,196.12
4. Step 4: Simplify right side
   22,267.05x = 374,768,900.28
5. Step 5: Solve for x
   x = 374,768,900.28/22,267.05
6. Step 6: Final answer
   x = 16,830.65