Finding the Fourth Proportional to 72,212.78, 108,228.96 and 49,847.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,212.78 : 108,228.96 = 49,847.96 : x
2. Step 2: Convert to fraction form
   72,212.78/108,228.96 = 49,847.96/x
3. Step 3: Cross multiply
   72,212.78x = 108,228.96 × 49,847.96
4. Step 4: Simplify right side
   72,212.78x = 5,394,992,327.78
5. Step 5: Solve for x
   x = 5,394,992,327.78/72,212.78
6. Step 6: Final answer
   x = 74,709.67