Finding the Fourth Proportional to 50,859, 70,185.90 and 28,503.48

Step by Step Solution

1. Step 1: Write the proportion equation
   50,859 : 70,185.90 = 28,503.48 : x
2. Step 2: Convert to fraction form
   50,859/70,185.90 = 28,503.48/x
3. Step 3: Cross multiply
   50,859x = 70,185.90 × 28,503.48
4. Step 4: Simplify right side
   50,859x = 2,000,542,396.93
5. Step 5: Solve for x
   x = 2,000,542,396.93/50,859
6. Step 6: Final answer
   x = 39,335.07