Finding the Fourth Proportional to 31,369.48, 43,290.03 and 17,222.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,369.48 : 43,290.03 = 17,222.31 : x
2. Step 2: Convert to fraction form
   31,369.48/43,290.03 = 17,222.31/x
3. Step 3: Cross multiply
   31,369.48x = 43,290.03 × 17,222.31
4. Step 4: Simplify right side
   31,369.48x = 745,554,316.57
5. Step 5: Solve for x
   x = 745,554,316.57/31,369.48
6. Step 6: Final answer
   x = 23,766.87