Finding the Fourth Proportional to 50,737.20, 71,187.60 and 50,737.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,737.20 : 71,187.60 = 50,737.20 : x
2. Step 2: Convert to fraction form
   50,737.20/71,187.60 = 50,737.20/x
3. Step 3: Cross multiply
   50,737.20x = 71,187.60 × 50,737.20
4. Step 4: Simplify right side
   50,737.20x = 3,611,859,498.72
5. Step 5: Solve for x
   x = 3,611,859,498.72/50,737.20
6. Step 6: Final answer
   x = 71,187.60