Finding the Fourth Proportional to 49,076.82, 67,728.72 and 28,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,076.82 : 67,728.72 = 28,945.50 : x
2. Step 2: Convert to fraction form
   49,076.82/67,728.72 = 28,945.50/x
3. Step 3: Cross multiply
   49,076.82x = 67,728.72 × 28,945.50
4. Step 4: Simplify right side
   49,076.82x = 1,960,441,664.76
5. Step 5: Solve for x
   x = 1,960,441,664.76/49,076.82
6. Step 6: Final answer
   x = 39,946.39