Finding the Fourth Proportional to 105,415.50, 158,175.18 and 49,259.49

Step by Step Solution

1. Step 1: Write the proportion equation
   105,415.50 : 158,175.18 = 49,259.49 : x
2. Step 2: Convert to fraction form
   105,415.50/158,175.18 = 49,259.49/x
3. Step 3: Cross multiply
   105,415.50x = 158,175.18 × 49,259.49
4. Step 4: Simplify right side
   105,415.50x = 7,791,627,906.58
5. Step 5: Solve for x
   x = 7,791,627,906.58/105,415.50
6. Step 6: Final answer
   x = 73,913.50