Finding the Fourth Proportional to 22,842.05, 31,522.13 and 13,287.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,842.05 : 31,522.13 = 13,287.59 : x
2. Step 2: Convert to fraction form
   22,842.05/31,522.13 = 13,287.59/x
3. Step 3: Cross multiply
   22,842.05x = 31,522.13 × 13,287.59
4. Step 4: Simplify right side
   22,842.05x = 418,853,014.98
5. Step 5: Solve for x
   x = 418,853,014.98/22,842.05
6. Step 6: Final answer
   x = 18,336.93