Finding the Fourth Proportional to 50,271.02, 69,375.16 and 28,762.78

Step by Step Solution

1. Step 1: Write the proportion equation
   50,271.02 : 69,375.16 = 28,762.78 : x
2. Step 2: Convert to fraction form
   50,271.02/69,375.16 = 28,762.78/x
3. Step 3: Cross multiply
   50,271.02x = 69,375.16 × 28,762.78
4. Step 4: Simplify right side
   50,271.02x = 1,995,422,464.54
5. Step 5: Solve for x
   x = 1,995,422,464.54/50,271.02
6. Step 6: Final answer
   x = 39,693.30