Finding the Fourth Proportional to 72,868.97, 109,315.91 and 33,429.47

Step by Step Solution

1. Step 1: Write the proportion equation
   72,868.97 : 109,315.91 = 33,429.47 : x
2. Step 2: Convert to fraction form
   72,868.97/109,315.91 = 33,429.47/x
3. Step 3: Cross multiply
   72,868.97x = 109,315.91 × 33,429.47
4. Step 4: Simplify right side
   72,868.97x = 3,654,372,470.86
5. Step 5: Solve for x
   x = 3,654,372,470.86/72,868.97
6. Step 6: Final answer
   x = 50,149.91