Finding the Fourth Proportional to 16,711.37, 23,060.67 and 9,156.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,711.37 : 23,060.67 = 9,156.20 : x
2. Step 2: Convert to fraction form
   16,711.37/23,060.67 = 9,156.20/x
3. Step 3: Cross multiply
   16,711.37x = 23,060.67 × 9,156.20
4. Step 4: Simplify right side
   16,711.37x = 211,147,991.35
5. Step 5: Solve for x
   x = 211,147,991.35/16,711.37
6. Step 6: Final answer
   x = 12,634.99