Finding the Fourth Proportional to 23,167.97, 31,971.58 and 12,958.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,167.97 : 31,971.58 = 12,958.89 : x
2. Step 2: Convert to fraction form
   23,167.97/31,971.58 = 12,958.89/x
3. Step 3: Cross multiply
   23,167.97x = 31,971.58 × 12,958.89
4. Step 4: Simplify right side
   23,167.97x = 414,316,108.95
5. Step 5: Solve for x
   x = 414,316,108.95/23,167.97
6. Step 6: Final answer
   x = 17,883.14