Finding the Fourth Proportional to 105,975.33, 158,987.62 and 31,092.45

Step by Step Solution

1. Step 1: Write the proportion equation
   105,975.33 : 158,987.62 = 31,092.45 : x
2. Step 2: Convert to fraction form
   105,975.33/158,987.62 = 31,092.45/x
3. Step 3: Cross multiply
   105,975.33x = 158,987.62 × 31,092.45
4. Step 4: Simplify right side
   105,975.33x = 4,943,314,470.01
5. Step 5: Solve for x
   x = 4,943,314,470.01/105,975.33
6. Step 6: Final answer
   x = 46,645.90