Finding the Fourth Proportional to 105,420.69, 158,112.81 and 49,265.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,420.69 : 158,112.81 = 49,265.82 : x
2. Step 2: Convert to fraction form
   105,420.69/158,112.81 = 49,265.82/x
3. Step 3: Cross multiply
   105,420.69x = 158,112.81 × 49,265.82
4. Step 4: Simplify right side
   105,420.69x = 7,789,557,237.15
5. Step 5: Solve for x
   x = 7,789,557,237.15/105,420.69
6. Step 6: Final answer
   x = 73,890.21