Finding the Fourth Proportional to 105,787.38, 158,603.31 and 50,422.26

Step by Step Solution

1. Step 1: Write the proportion equation
   105,787.38 : 158,603.31 = 50,422.26 : x
2. Step 2: Convert to fraction form
   105,787.38/158,603.31 = 50,422.26/x
3. Step 3: Cross multiply
   105,787.38x = 158,603.31 × 50,422.26
4. Step 4: Simplify right side
   105,787.38x = 7,997,137,333.68
5. Step 5: Solve for x
   x = 7,997,137,333.68/105,787.38
6. Step 6: Final answer
   x = 75,596.33