Finding the Fourth Proportional to 49,012.94, 73,487.82 and 20,951.30

Step by Step Solution

1. Step 1: Write the proportion equation
   49,012.94 : 73,487.82 = 20,951.30 : x
2. Step 2: Convert to fraction form
   49,012.94/73,487.82 = 20,951.30/x
3. Step 3: Cross multiply
   49,012.94x = 73,487.82 × 20,951.30
4. Step 4: Simplify right side
   49,012.94x = 1,539,665,363.17
5. Step 5: Solve for x
   x = 1,539,665,363.17/49,012.94
6. Step 6: Final answer
   x = 31,413.45