Finding the Fourth Proportional to 72,928.48, 109,435.77 and 30,805.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,928.48 : 109,435.77 = 30,805.83 : x
2. Step 2: Convert to fraction form
   72,928.48/109,435.77 = 30,805.83/x
3. Step 3: Cross multiply
   72,928.48x = 109,435.77 × 30,805.83
4. Step 4: Simplify right side
   72,928.48x = 3,371,259,923.75
5. Step 5: Solve for x
   x = 3,371,259,923.75/72,928.48
6. Step 6: Final answer
   x = 46,226.93