Finding the Fourth Proportional to 49,685.92, 68,571.60 and 28,468

Step by Step Solution

1. Step 1: Write the proportion equation
   49,685.92 : 68,571.60 = 28,468 : x
2. Step 2: Convert to fraction form
   49,685.92/68,571.60 = 28,468/x
3. Step 3: Cross multiply
   49,685.92x = 68,571.60 × 28,468
4. Step 4: Simplify right side
   49,685.92x = 1,952,096,308.80
5. Step 5: Solve for x
   x = 1,952,096,308.80/49,685.92
6. Step 6: Final answer
   x = 39,288.72