Finding the Fourth Proportional to 72,418.94, 108,628.55 and 30,865.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72,418.94 : 108,628.55 = 30,865.94 : x
2. Step 2: Convert to fraction form
   72,418.94/108,628.55 = 30,865.94/x
3. Step 3: Cross multiply
   72,418.94x = 108,628.55 × 30,865.94
4. Step 4: Simplify right side
   72,418.94x = 3,352,922,306.59
5. Step 5: Solve for x
   x = 3,352,922,306.59/72,418.94
6. Step 6: Final answer
   x = 46,298.97