Finding the Fourth Proportional to 50,856.50, 76,270.62 and 28,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,856.50 : 76,270.62 = 28,339.50 : x
2. Step 2: Convert to fraction form
   50,856.50/76,270.62 = 28,339.50/x
3. Step 3: Cross multiply
   50,856.50x = 76,270.62 × 28,339.50
4. Step 4: Simplify right side
   50,856.50x = 2,161,471,235.49
5. Step 5: Solve for x
   x = 2,161,471,235.49/50,856.50
6. Step 6: Final answer
   x = 42,501.38