Finding the Fourth Proportional to 22,589.81, 31,173.11 and 13,030.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,589.81 : 31,173.11 = 13,030.10 : x
2. Step 2: Convert to fraction form
   22,589.81/31,173.11 = 13,030.10/x
3. Step 3: Cross multiply
   22,589.81x = 31,173.11 × 13,030.10
4. Step 4: Simplify right side
   22,589.81x = 406,188,519.59
5. Step 5: Solve for x
   x = 406,188,519.59/22,589.81
6. Step 6: Final answer
   x = 17,981.05