Finding the Fourth Proportional to 22,404.22, 30,913.96 and 13,456.65

Step by Step Solution

1. Step 1: Write the proportion equation
   22,404.22 : 30,913.96 = 13,456.65 : x
2. Step 2: Convert to fraction form
   22,404.22/30,913.96 = 13,456.65/x
3. Step 3: Cross multiply
   22,404.22x = 30,913.96 × 13,456.65
4. Step 4: Simplify right side
   22,404.22x = 415,998,339.83
5. Step 5: Solve for x
   x = 415,998,339.83/22,404.22
6. Step 6: Final answer
   x = 18,567.86