Finding the Fourth Proportional to 23,005.57, 31,747.49 and 12,934.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,005.57 : 31,747.49 = 12,934.06 : x
2. Step 2: Convert to fraction form
   23,005.57/31,747.49 = 12,934.06/x
3. Step 3: Cross multiply
   23,005.57x = 31,747.49 × 12,934.06
4. Step 4: Simplify right side
   23,005.57x = 410,623,940.51
5. Step 5: Solve for x
   x = 410,623,940.51/23,005.57
6. Step 6: Final answer
   x = 17,848.89