Finding the Fourth Proportional to 22,333.42, 30,817.61 and 13,255.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,333.42 : 30,817.61 = 13,255.55 : x
2. Step 2: Convert to fraction form
   22,333.42/30,817.61 = 13,255.55/x
3. Step 3: Cross multiply
   22,333.42x = 30,817.61 × 13,255.55
4. Step 4: Simplify right side
   22,333.42x = 408,504,389.71
5. Step 5: Solve for x
   x = 408,504,389.71/22,333.42
6. Step 6: Final answer
   x = 18,291.17