Finding the Fourth Proportional to 105,570.72, 158,352.24 and 31,696.80

Step by Step Solution

1. Step 1: Write the proportion equation
   105,570.72 : 158,352.24 = 31,696.80 : x
2. Step 2: Convert to fraction form
   105,570.72/158,352.24 = 31,696.80/x
3. Step 3: Cross multiply
   105,570.72x = 158,352.24 × 31,696.80
4. Step 4: Simplify right side
   105,570.72x = 5,019,259,280.83
5. Step 5: Solve for x
   x = 5,019,259,280.83/105,570.72
6. Step 6: Final answer
   x = 47,544.05