Finding the Fourth Proportional to 40,483.89, 60,764.76 and 19,721.97

Step by Step Solution

1. Step 1: Write the proportion equation
   40,483.89 : 60,764.76 = 19,721.97 : x
2. Step 2: Convert to fraction form
   40,483.89/60,764.76 = 19,721.97/x
3. Step 3: Cross multiply
   40,483.89x = 60,764.76 × 19,721.97
4. Step 4: Simplify right side
   40,483.89x = 1,198,400,773.78
5. Step 5: Solve for x
   x = 1,198,400,773.78/40,483.89
6. Step 6: Final answer
   x = 29,601.92