Finding the Fourth Proportional to 16,514.98, 24,779.42 and 10,280.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,514.98 : 24,779.42 = 10,280.21 : x
2. Step 2: Convert to fraction form
   16,514.98/24,779.42 = 10,280.21/x
3. Step 3: Cross multiply
   16,514.98x = 24,779.42 × 10,280.21
4. Step 4: Simplify right side
   16,514.98x = 254,737,465.98
5. Step 5: Solve for x
   x = 254,737,465.98/16,514.98
6. Step 6: Final answer
   x = 15,424.63