Finding the Fourth Proportional to 16,810, 23,197.89 and 9,358

Step by Step Solution

1. Step 1: Write the proportion equation
   16,810 : 23,197.89 = 9,358 : x
2. Step 2: Convert to fraction form
   16,810/23,197.89 = 9,358/x
3. Step 3: Cross multiply
   16,810x = 23,197.89 × 9,358
4. Step 4: Simplify right side
   16,810x = 217,085,854.62
5. Step 5: Solve for x
   x = 217,085,854.62/16,810
6. Step 6: Final answer
   x = 12,914.09