Finding the Fourth Proportional to 31,370.27, 43,290.42 and 17,223

Step by Step Solution

1. Step 1: Write the proportion equation
   31,370.27 : 43,290.42 = 17,223 : x
2. Step 2: Convert to fraction form
   31,370.27/43,290.42 = 17,223/x
3. Step 3: Cross multiply
   31,370.27x = 43,290.42 × 17,223
4. Step 4: Simplify right side
   31,370.27x = 745,590,903.66
5. Step 5: Solve for x
   x = 745,590,903.66/31,370.27
6. Step 6: Final answer
   x = 23,767.44