Finding the Fourth Proportional to 49,078.58, 67,728.76 and 27,858.20

Step by Step Solution

1. Step 1: Write the proportion equation
   49,078.58 : 67,728.76 = 27,858.20 : x
2. Step 2: Convert to fraction form
   49,078.58/67,728.76 = 27,858.20/x
3. Step 3: Cross multiply
   49,078.58x = 67,728.76 × 27,858.20
4. Step 4: Simplify right side
   49,078.58x = 1,886,800,933.54
5. Step 5: Solve for x
   x = 1,886,800,933.54/49,078.58
6. Step 6: Final answer
   x = 38,444.49