Finding the Fourth Proportional to 22,020.18, 30,397.32 and 13,523.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,020.18 : 30,397.32 = 13,523.69 : x
2. Step 2: Convert to fraction form
   22,020.18/30,397.32 = 13,523.69/x
3. Step 3: Cross multiply
   22,020.18x = 30,397.32 × 13,523.69
4. Step 4: Simplify right side
   22,020.18x = 411,083,780.52
5. Step 5: Solve for x
   x = 411,083,780.52/22,020.18
6. Step 6: Final answer
   x = 18,668.50