Finding the Fourth Proportional to 22,590.98, 31,174.70 and 13,031.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,590.98 : 31,174.70 = 13,031.27 : x
2. Step 2: Convert to fraction form
   22,590.98/31,174.70 = 13,031.27/x
3. Step 3: Cross multiply
   22,590.98x = 31,174.70 × 13,031.27
4. Step 4: Simplify right side
   22,590.98x = 406,245,932.87
5. Step 5: Solve for x
   x = 406,245,932.87/22,590.98
6. Step 6: Final answer
   x = 17,982.66