Finding the Fourth Proportional to 50,823.75, 70,136.78 and 30,951.75

Step by Step Solution

1. Step 1: Write the proportion equation
   50,823.75 : 70,136.78 = 30,951.75 : x
2. Step 2: Convert to fraction form
   50,823.75/70,136.78 = 30,951.75/x
3. Step 3: Cross multiply
   50,823.75x = 70,136.78 × 30,951.75
4. Step 4: Simplify right side
   50,823.75x = 2,170,856,080.37
5. Step 5: Solve for x
   x = 2,170,856,080.37/50,823.75
6. Step 6: Final answer
   x = 42,713.42