Finding the Fourth Proportional to 50,767.50, 70,059.15 and 28,411.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,767.50 : 70,059.15 = 28,411.50 : x
2. Step 2: Convert to fraction form
   50,767.50/70,059.15 = 28,411.50/x
3. Step 3: Cross multiply
   50,767.50x = 70,059.15 × 28,411.50
4. Step 4: Simplify right side
   50,767.50x = 1,990,485,540.23
5. Step 5: Solve for x
   x = 1,990,485,540.23/50,767.50
6. Step 6: Final answer
   x = 39,207.87