Finding the Fourth Proportional to 21,940.24, 30,255.42 and 16,575.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,940.24 : 30,255.42 = 16,575.88 : x
2. Step 2: Convert to fraction form
   21,940.24/30,255.42 = 16,575.88/x
3. Step 3: Cross multiply
   21,940.24x = 30,255.42 × 16,575.88
4. Step 4: Simplify right side
   21,940.24x = 501,510,211.27
5. Step 5: Solve for x
   x = 501,510,211.27/21,940.24
6. Step 6: Final answer
   x = 22,858.01