Finding the Fourth Proportional to 50,647.50, 69,893.55 and 28,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,647.50 : 69,893.55 = 28,291.50 : x
2. Step 2: Convert to fraction form
   50,647.50/69,893.55 = 28,291.50/x
3. Step 3: Cross multiply
   50,647.50x = 69,893.55 × 28,291.50
4. Step 4: Simplify right side
   50,647.50x = 1,977,393,369.83
5. Step 5: Solve for x
   x = 1,977,393,369.83/50,647.50
6. Step 6: Final answer
   x = 39,042.27