Finding the Fourth Proportional to 16,717.62, 23,070.17 and 9,164.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,717.62 : 23,070.17 = 9,164.37 : x
2. Step 2: Convert to fraction form
   16,717.62/23,070.17 = 9,164.37/x
3. Step 3: Cross multiply
   16,717.62x = 23,070.17 × 9,164.37
4. Step 4: Simplify right side
   16,717.62x = 211,423,596.75
5. Step 5: Solve for x
   x = 211,423,596.75/16,717.62
6. Step 6: Final answer
   x = 12,646.75