Finding the Fourth Proportional to 72,740.43, 109,112.46 and 20,150.37

Step by Step Solution

1. Step 1: Write the proportion equation
   72,740.43 : 109,112.46 = 20,150.37 : x
2. Step 2: Convert to fraction form
   72,740.43/109,112.46 = 20,150.37/x
3. Step 3: Cross multiply
   72,740.43x = 109,112.46 × 20,150.37
4. Step 4: Simplify right side
   72,740.43x = 2,198,656,440.61
5. Step 5: Solve for x
   x = 2,198,656,440.61/72,740.43
6. Step 6: Final answer
   x = 30,226.06