Finding the Fourth Proportional to 17,146.12, 23,648.94 and 12,105.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,146.12 : 23,648.94 = 12,105.09 : x
2. Step 2: Convert to fraction form
   17,146.12/23,648.94 = 12,105.09/x
3. Step 3: Cross multiply
   17,146.12x = 23,648.94 × 12,105.09
4. Step 4: Simplify right side
   17,146.12x = 286,272,547.10
5. Step 5: Solve for x
   x = 286,272,547.10/17,146.12
6. Step 6: Final answer
   x = 16,696.05