Finding the Fourth Proportional to 49,424.28, 68,210.37 and 28,206.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,424.28 : 68,210.37 = 28,206.72 : x
2. Step 2: Convert to fraction form
   49,424.28/68,210.37 = 28,206.72/x
3. Step 3: Cross multiply
   49,424.28x = 68,210.37 × 28,206.72
4. Step 4: Simplify right side
   49,424.28x = 1,923,990,807.69
5. Step 5: Solve for x
   x = 1,923,990,807.69/49,424.28
6. Step 6: Final answer
   x = 38,928.05