Finding the Fourth Proportional to 16,608.61, 22,897.87 and 13,418.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,608.61 : 22,897.87 = 13,418.34 : x
2. Step 2: Convert to fraction form
   16,608.61/22,897.87 = 13,418.34/x
3. Step 3: Cross multiply
   16,608.61x = 22,897.87 × 13,418.34
4. Step 4: Simplify right side
   16,608.61x = 307,251,404.94
5. Step 5: Solve for x
   x = 307,251,404.94/16,608.61
6. Step 6: Final answer
   x = 18,499.53