Finding the Fourth Proportional to 72,540.18, 108,843.81 and 33,109.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,540.18 : 108,843.81 = 33,109.38 : x
2. Step 2: Convert to fraction form
   72,540.18/108,843.81 = 33,109.38/x
3. Step 3: Cross multiply
   72,540.18x = 108,843.81 × 33,109.38
4. Step 4: Simplify right side
   72,540.18x = 3,603,751,065.94
5. Step 5: Solve for x
   x = 3,603,751,065.94/72,540.18
6. Step 6: Final answer
   x = 49,679.38