Finding the Fourth Proportional to 23,010.71, 31,755.90 and 12,942.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,010.71 : 31,755.90 = 12,942.32 : x
2. Step 2: Convert to fraction form
   23,010.71/31,755.90 = 12,942.32/x
3. Step 3: Cross multiply
   23,010.71x = 31,755.90 × 12,942.32
4. Step 4: Simplify right side
   23,010.71x = 410,995,019.69
5. Step 5: Solve for x
   x = 410,995,019.69/23,010.71
6. Step 6: Final answer
   x = 17,861.03