Finding the Fourth Proportional to 9,438.43, 14,159.63 and 3,891.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,438.43 : 14,159.63 = 3,891.73 : x
2. Step 2: Convert to fraction form
   9,438.43/14,159.63 = 3,891.73/x
3. Step 3: Cross multiply
   9,438.43x = 14,159.63 × 3,891.73
4. Step 4: Simplify right side
   9,438.43x = 55,105,456.86
5. Step 5: Solve for x
   x = 55,105,456.86/9,438.43
6. Step 6: Final answer
   x = 5,838.41