Finding the Fourth Proportional to 50,756, 70,074 and 33,122.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,756 : 70,074 = 33,122.72 : x
2. Step 2: Convert to fraction form
   50,756/70,074 = 33,122.72/x
3. Step 3: Cross multiply
   50,756x = 70,074 × 33,122.72
4. Step 4: Simplify right side
   50,756x = 2,321,041,481.28
5. Step 5: Solve for x
   x = 2,321,041,481.28/50,756
6. Step 6: Final answer
   x = 45,729.40