Finding the Fourth Proportional to 31,369.30, 43,289.70 and 17,223.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,369.30 : 43,289.70 = 17,223.06 : x
2. Step 2: Convert to fraction form
   31,369.30/43,289.70 = 17,223.06/x
3. Step 3: Cross multiply
   31,369.30x = 43,289.70 × 17,223.06
4. Step 4: Simplify right side
   31,369.30x = 745,581,100.48
5. Step 5: Solve for x
   x = 745,581,100.48/31,369.30
6. Step 6: Final answer
   x = 23,767.86