Finding the Fourth Proportional to 31,040.23, 42,834.94 and 17,242.07

Step by Step Solution

1. Step 1: Write the proportion equation
   31,040.23 : 42,834.94 = 17,242.07 : x
2. Step 2: Convert to fraction form
   31,040.23/42,834.94 = 17,242.07/x
3. Step 3: Cross multiply
   31,040.23x = 42,834.94 × 17,242.07
4. Step 4: Simplify right side
   31,040.23x = 738,563,033.93
5. Step 5: Solve for x
   x = 738,563,033.93/31,040.23
6. Step 6: Final answer
   x = 23,793.74