Finding the Fourth Proportional to 50,279.72, 69,389.72 and 31,163.24

Step by Step Solution

1. Step 1: Write the proportion equation
   50,279.72 : 69,389.72 = 31,163.24 : x
2. Step 2: Convert to fraction form
   50,279.72/69,389.72 = 31,163.24/x
3. Step 3: Cross multiply
   50,279.72x = 69,389.72 × 31,163.24
4. Step 4: Simplify right side
   50,279.72x = 2,162,408,497.89
5. Step 5: Solve for x
   x = 2,162,408,497.89/50,279.72
6. Step 6: Final answer
   x = 43,007.57