Finding the Fourth Proportional to 105,414.50, 158,173.68 and 49,258.49

Step by Step Solution

1. Step 1: Write the proportion equation
   105,414.50 : 158,173.68 = 49,258.49 : x
2. Step 2: Convert to fraction form
   105,414.50/158,173.68 = 49,258.49/x
3. Step 3: Cross multiply
   105,414.50x = 158,173.68 × 49,258.49
4. Step 4: Simplify right side
   105,414.50x = 7,791,395,843.67
5. Step 5: Solve for x
   x = 7,791,395,843.67/105,414.50
6. Step 6: Final answer
   x = 73,912.00