Finding the Fourth Proportional to 72,105.30, 108,168.30 and 22,189.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72,105.30 : 108,168.30 = 22,189.62 : x
2. Step 2: Convert to fraction form
   72,105.30/108,168.30 = 22,189.62/x
3. Step 3: Cross multiply
   72,105.30x = 108,168.30 × 22,189.62
4. Step 4: Simplify right side
   72,105.30x = 2,400,213,473.05
5. Step 5: Solve for x
   x = 2,400,213,473.05/72,105.30
6. Step 6: Final answer
   x = 33,287.62