Finding the Fourth Proportional to 17,185, 23,711.46 and 10,111.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,185 : 23,711.46 = 10,111.72 : x
2. Step 2: Convert to fraction form
   17,185/23,711.46 = 10,111.72/x
3. Step 3: Cross multiply
   17,185x = 23,711.46 × 10,111.72
4. Step 4: Simplify right side
   17,185x = 239,763,644.31
5. Step 5: Solve for x
   x = 239,763,644.31/17,185
6. Step 6: Final answer
   x = 13,951.91