Finding the Fourth Proportional to 23,013.78, 31,680.66 and 17,034.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,013.78 : 31,680.66 = 17,034.18 : x
2. Step 2: Convert to fraction form
   23,013.78/31,680.66 = 17,034.18/x
3. Step 3: Cross multiply
   23,013.78x = 31,680.66 × 17,034.18
4. Step 4: Simplify right side
   23,013.78x = 539,654,064.96
5. Step 5: Solve for x
   x = 539,654,064.96/23,013.78
6. Step 6: Final answer
   x = 23,449.17