Finding the Fourth Proportional to 16,684.89, 23,025.24 and 9,131.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,684.89 : 23,025.24 = 9,131.31 : x
2. Step 2: Convert to fraction form
   16,684.89/23,025.24 = 9,131.31/x
3. Step 3: Cross multiply
   16,684.89x = 23,025.24 × 9,131.31
4. Step 4: Simplify right side
   16,684.89x = 210,250,604.26
5. Step 5: Solve for x
   x = 210,250,604.26/16,684.89
6. Step 6: Final answer
   x = 12,601.26