Finding the Fourth Proportional to 49,019.78, 73,550.63 and 20,945.99

Step by Step Solution

1. Step 1: Write the proportion equation
   49,019.78 : 73,550.63 = 20,945.99 : x
2. Step 2: Convert to fraction form
   49,019.78/73,550.63 = 20,945.99/x
3. Step 3: Cross multiply
   49,019.78x = 73,550.63 × 20,945.99
4. Step 4: Simplify right side
   49,019.78x = 1,540,590,996.72
5. Step 5: Solve for x
   x = 1,540,590,996.72/49,019.78
6. Step 6: Final answer
   x = 31,427.94