Finding the Fourth Proportional to 14,947.69, 20,627.81 and 8,663.71

Step by Step Solution

1. Step 1: Write the proportion equation
   14,947.69 : 20,627.81 = 8,663.71 : x
2. Step 2: Convert to fraction form
   14,947.69/20,627.81 = 8,663.71/x
3. Step 3: Cross multiply
   14,947.69x = 20,627.81 × 8,663.71
4. Step 4: Simplify right side
   14,947.69x = 178,713,333.86
5. Step 5: Solve for x
   x = 178,713,333.86/14,947.69
6. Step 6: Final answer
   x = 11,955.92