Finding the Fourth Proportional to 50,928.50, 70,287.81 and 28,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,928.50 : 70,287.81 = 28,572.50 : x
2. Step 2: Convert to fraction form
   50,928.50/70,287.81 = 28,572.50/x
3. Step 3: Cross multiply
   50,928.50x = 70,287.81 × 28,572.50
4. Step 4: Simplify right side
   50,928.50x = 2,008,298,451.23
5. Step 5: Solve for x
   x = 2,008,298,451.23/50,928.50
6. Step 6: Final answer
   x = 39,433.69