Finding the Fourth Proportional to 10,650.48, 15,981.20 and 5,729.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,650.48 : 15,981.20 = 5,729.73 : x
2. Step 2: Convert to fraction form
   10,650.48/15,981.20 = 5,729.73/x
3. Step 3: Cross multiply
   10,650.48x = 15,981.20 × 5,729.73
4. Step 4: Simplify right side
   10,650.48x = 91,567,932.43
5. Step 5: Solve for x
   x = 91,567,932.43/10,650.48
6. Step 6: Final answer
   x = 8,597.54