Finding the Fourth Proportional to 105,910.64, 158,789.03 and 49,721.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,910.64 : 158,789.03 = 49,721.84 : x
2. Step 2: Convert to fraction form
   105,910.64/158,789.03 = 49,721.84/x
3. Step 3: Cross multiply
   105,910.64x = 158,789.03 × 49,721.84
4. Step 4: Simplify right side
   105,910.64x = 7,895,281,700.86
5. Step 5: Solve for x
   x = 7,895,281,700.86/105,910.64
6. Step 6: Final answer
   x = 74,546.64