Finding the Fourth Proportional to 11,185.30, 16,763.55 and 8,575.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,185.30 : 16,763.55 = 8,575.30 : x
2. Step 2: Convert to fraction form
   11,185.30/16,763.55 = 8,575.30/x
3. Step 3: Cross multiply
   11,185.30x = 16,763.55 × 8,575.30
4. Step 4: Simplify right side
   11,185.30x = 143,752,470.32
5. Step 5: Solve for x
   x = 143,752,470.32/11,185.30
6. Step 6: Final answer
   x = 12,851.91