Finding the Fourth Proportional to 16,923.42, 25,390.32 and 7,571.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,923.42 : 25,390.32 = 7,571.31 : x
2. Step 2: Convert to fraction form
   16,923.42/25,390.32 = 7,571.31/x
3. Step 3: Cross multiply
   16,923.42x = 25,390.32 × 7,571.31
4. Step 4: Simplify right side
   16,923.42x = 192,237,983.72
5. Step 5: Solve for x
   x = 192,237,983.72/16,923.42
6. Step 6: Final answer
   x = 11,359.29