Finding the Fourth Proportional to 50,249.67, 69,322.43 and 31,124.35

Step by Step Solution

1. Step 1: Write the proportion equation
   50,249.67 : 69,322.43 = 31,124.35 : x
2. Step 2: Convert to fraction form
   50,249.67/69,322.43 = 31,124.35/x
3. Step 3: Cross multiply
   50,249.67x = 69,322.43 × 31,124.35
4. Step 4: Simplify right side
   50,249.67x = 2,157,615,738.63
5. Step 5: Solve for x
   x = 2,157,615,738.63/50,249.67
6. Step 6: Final answer
   x = 42,937.91