Finding the Fourth Proportional to 20,472.76, 30,708.06 and 10,081

Step by Step Solution

1. Step 1: Write the proportion equation
   20,472.76 : 30,708.06 = 10,081 : x
2. Step 2: Convert to fraction form
   20,472.76/30,708.06 = 10,081/x
3. Step 3: Cross multiply
   20,472.76x = 30,708.06 × 10,081
4. Step 4: Simplify right side
   20,472.76x = 309,567,952.86
5. Step 5: Solve for x
   x = 309,567,952.86/20,472.76
6. Step 6: Final answer
   x = 15,120.97