Finding the Fourth Proportional to 49,621.41, 68,451.89 and 30,725.73

Step by Step Solution

1. Step 1: Write the proportion equation
   49,621.41 : 68,451.89 = 30,725.73 : x
2. Step 2: Convert to fraction form
   49,621.41/68,451.89 = 30,725.73/x
3. Step 3: Cross multiply
   49,621.41x = 68,451.89 × 30,725.73
4. Step 4: Simplify right side
   49,621.41x = 2,103,234,136.50
5. Step 5: Solve for x
   x = 2,103,234,136.50/49,621.41
6. Step 6: Final answer
   x = 42,385.62