Finding the Fourth Proportional to 49,608.50, 68,465.72 and 28,387.31

Step by Step Solution

1. Step 1: Write the proportion equation
   49,608.50 : 68,465.72 = 28,387.31 : x
2. Step 2: Convert to fraction form
   49,608.50/68,465.72 = 28,387.31/x
3. Step 3: Cross multiply
   49,608.50x = 68,465.72 × 28,387.31
4. Step 4: Simplify right side
   49,608.50x = 1,943,557,647.24
5. Step 5: Solve for x
   x = 1,943,557,647.24/49,608.50
6. Step 6: Final answer
   x = 39,177.91