Finding the Fourth Proportional to 49,722.72, 74,584.72 and 19,744.32

Step by Step Solution

1. Step 1: Write the proportion equation
   49,722.72 : 74,584.72 = 19,744.32 : x
2. Step 2: Convert to fraction form
   49,722.72/74,584.72 = 19,744.32/x
3. Step 3: Cross multiply
   49,722.72x = 74,584.72 × 19,744.32
4. Step 4: Simplify right side
   49,722.72x = 1,472,624,578.79
5. Step 5: Solve for x
   x = 1,472,624,578.79/49,722.72
6. Step 6: Final answer
   x = 29,616.73