Finding the Fourth Proportional to 16,878.38, 25,333 and 8,564.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,878.38 : 25,333 = 8,564.12 : x
2. Step 2: Convert to fraction form
   16,878.38/25,333 = 8,564.12/x
3. Step 3: Cross multiply
   16,878.38x = 25,333 × 8,564.12
4. Step 4: Simplify right side
   16,878.38x = 216,954,851.96
5. Step 5: Solve for x
   x = 216,954,851.96/16,878.38
6. Step 6: Final answer
   x = 12,854.01