Finding the Fourth Proportional to 14,846.46, 20,487.94 and 8,131.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,846.46 : 20,487.94 = 8,131.69 : x
2. Step 2: Convert to fraction form
   14,846.46/20,487.94 = 8,131.69/x
3. Step 3: Cross multiply
   14,846.46x = 20,487.94 × 8,131.69
4. Step 4: Simplify right side
   14,846.46x = 166,601,582.10
5. Step 5: Solve for x
   x = 166,601,582.10/14,846.46
6. Step 6: Final answer
   x = 11,221.63