Finding the Fourth Proportional to 50,020.75, 69,049.89 and 31,167.19

Step by Step Solution

1. Step 1: Write the proportion equation
   50,020.75 : 69,049.89 = 31,167.19 : x
2. Step 2: Convert to fraction form
   50,020.75/69,049.89 = 31,167.19/x
3. Step 3: Cross multiply
   50,020.75x = 69,049.89 × 31,167.19
4. Step 4: Simplify right side
   50,020.75x = 2,152,090,540.02
5. Step 5: Solve for x
   x = 2,152,090,540.02/50,020.75
6. Step 6: Final answer
   x = 43,023.96