Finding the Fourth Proportional to 22,589.71, 31,175.17 and 13,029.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,589.71 : 31,175.17 = 13,029.42 : x
2. Step 2: Convert to fraction form
   22,589.71/31,175.17 = 13,029.42/x
3. Step 3: Cross multiply
   22,589.71x = 31,175.17 × 13,029.42
4. Step 4: Simplify right side
   22,589.71x = 406,194,467.83
5. Step 5: Solve for x
   x = 406,194,467.83/22,589.71
6. Step 6: Final answer
   x = 17,981.40