Finding the Fourth Proportional to 11,967.15, 17,923.42 and 5,731.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,967.15 : 17,923.42 = 5,731.57 : x
2. Step 2: Convert to fraction form
   11,967.15/17,923.42 = 5,731.57/x
3. Step 3: Cross multiply
   11,967.15x = 17,923.42 × 5,731.57
4. Step 4: Simplify right side
   11,967.15x = 102,729,336.37
5. Step 5: Solve for x
   x = 102,729,336.37/11,967.15
6. Step 6: Final answer
   x = 8,584.28