Finding the Fourth Proportional to 50,776.24, 70,062.88 and 31,900

Step by Step Solution

1. Step 1: Write the proportion equation
   50,776.24 : 70,062.88 = 31,900 : x
2. Step 2: Convert to fraction form
   50,776.24/70,062.88 = 31,900/x
3. Step 3: Cross multiply
   50,776.24x = 70,062.88 × 31,900
4. Step 4: Simplify right side
   50,776.24x = 2,235,005,872
5. Step 5: Solve for x
   x = 2,235,005,872/50,776.24
6. Step 6: Final answer
   x = 44,016.77