Finding the Fourth Proportional to 50,187.62, 69,257.88 and 31,062.31

Step by Step Solution

1. Step 1: Write the proportion equation
   50,187.62 : 69,257.88 = 31,062.31 : x
2. Step 2: Convert to fraction form
   50,187.62/69,257.88 = 31,062.31/x
3. Step 3: Cross multiply
   50,187.62x = 69,257.88 × 31,062.31
4. Step 4: Simplify right side
   50,187.62x = 2,151,309,738.50
5. Step 5: Solve for x
   x = 2,151,309,738.50/50,187.62
6. Step 6: Final answer
   x = 42,865.35