Finding the Fourth Proportional to 16,514.34, 22,781.43 and 10,539.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,514.34 : 22,781.43 = 10,539.78 : x
2. Step 2: Convert to fraction form
   16,514.34/22,781.43 = 10,539.78/x
3. Step 3: Cross multiply
   16,514.34x = 22,781.43 × 10,539.78
4. Step 4: Simplify right side
   16,514.34x = 240,111,260.29
5. Step 5: Solve for x
   x = 240,111,260.29/16,514.34
6. Step 6: Final answer
   x = 14,539.56