Finding the Fourth Proportional to 16,662.18, 24,980.82 and 10,086.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.18 : 24,980.82 = 10,086.78 : x
2. Step 2: Convert to fraction form
   16,662.18/24,980.82 = 10,086.78/x
3. Step 3: Cross multiply
   16,662.18x = 24,980.82 × 10,086.78
4. Step 4: Simplify right side
   16,662.18x = 251,976,035.56
5. Step 5: Solve for x
   x = 251,976,035.56/16,662.18
6. Step 6: Final answer
   x = 15,122.63