Finding the Fourth Proportional to 72,879.94, 109,310.52 and 30,776.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72,879.94 : 109,310.52 = 30,776.68 : x
2. Step 2: Convert to fraction form
   72,879.94/109,310.52 = 30,776.68/x
3. Step 3: Cross multiply
   72,879.94x = 109,310.52 × 30,776.68
4. Step 4: Simplify right side
   72,879.94x = 3,364,214,894.67
5. Step 5: Solve for x
   x = 3,364,214,894.67/72,879.94
6. Step 6: Final answer
   x = 46,161.05