Finding the Fourth Proportional to 8,721.42, 12,035.89 and 4,944.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,721.42 : 12,035.89 = 4,944.54 : x
2. Step 2: Convert to fraction form
   8,721.42/12,035.89 = 4,944.54/x
3. Step 3: Cross multiply
   8,721.42x = 12,035.89 × 4,944.54
4. Step 4: Simplify right side
   8,721.42x = 59,511,990.86
5. Step 5: Solve for x
   x = 59,511,990.86/8,721.42
6. Step 6: Final answer
   x = 6,823.66