Finding the Fourth Proportional to 50,162.90, 69,231.87 and 31,048.79

Step by Step Solution

1. Step 1: Write the proportion equation
   50,162.90 : 69,231.87 = 31,048.79 : x
2. Step 2: Convert to fraction form
   50,162.90/69,231.87 = 31,048.79/x
3. Step 3: Cross multiply
   50,162.90x = 69,231.87 × 31,048.79
4. Step 4: Simplify right side
   50,162.90x = 2,149,565,446.78
5. Step 5: Solve for x
   x = 2,149,565,446.78/50,162.90
6. Step 6: Final answer
   x = 42,851.70