Finding the Fourth Proportional to 50,315.82, 69,440.62 and 28,807.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,315.82 : 69,440.62 = 28,807.28 : x
2. Step 2: Convert to fraction form
   50,315.82/69,440.62 = 28,807.28/x
3. Step 3: Cross multiply
   50,315.82x = 69,440.62 × 28,807.28
4. Step 4: Simplify right side
   50,315.82x = 2,000,395,169.42
5. Step 5: Solve for x
   x = 2,000,395,169.42/50,315.82
6. Step 6: Final answer
   x = 39,756.78