Finding the Fourth Proportional to 31,660.38, 43,686.81 and 17,513.19

Step by Step Solution

1. Step 1: Write the proportion equation
   31,660.38 : 43,686.81 = 17,513.19 : x
2. Step 2: Convert to fraction form
   31,660.38/43,686.81 = 17,513.19/x
3. Step 3: Cross multiply
   31,660.38x = 43,686.81 × 17,513.19
4. Step 4: Simplify right side
   31,660.38x = 765,095,404.02
5. Step 5: Solve for x
   x = 765,095,404.02/31,660.38
6. Step 6: Final answer
   x = 24,165.71