Finding the Fourth Proportional to 80,721.54, 111,382.61 and 44,910.63

Step by Step Solution

1. Step 1: Write the proportion equation
   80,721.54 : 111,382.61 = 44,910.63 : x
2. Step 2: Convert to fraction form
   80,721.54/111,382.61 = 44,910.63/x
3. Step 3: Cross multiply
   80,721.54x = 111,382.61 × 44,910.63
4. Step 4: Simplify right side
   80,721.54x = 5,002,262,961.59
5. Step 5: Solve for x
   x = 5,002,262,961.59/80,721.54
6. Step 6: Final answer
   x = 61,969.37