Finding the Fourth Proportional to 16,860.52, 25,277.82 and 8,090.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,860.52 : 25,277.82 = 8,090.56 : x
2. Step 2: Convert to fraction form
   16,860.52/25,277.82 = 8,090.56/x
3. Step 3: Cross multiply
   16,860.52x = 25,277.82 × 8,090.56
4. Step 4: Simplify right side
   16,860.52x = 204,511,719.38
5. Step 5: Solve for x
   x = 204,511,719.38/16,860.52
6. Step 6: Final answer
   x = 12,129.62