Finding the Fourth Proportional to 50,112, 69,137.37 and 28,586.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,112 : 69,137.37 = 28,586.28 : x
2. Step 2: Convert to fraction form
   50,112/69,137.37 = 28,586.28/x
3. Step 3: Cross multiply
   50,112x = 69,137.37 × 28,586.28
4. Step 4: Simplify right side
   50,112x = 1,976,380,217.28
5. Step 5: Solve for x
   x = 1,976,380,217.28/50,112
6. Step 6: Final answer
   x = 39,439.26