Finding the Fourth Proportional to 12,556.38, 17,339.52 and 8,087.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,556.38 : 17,339.52 = 8,087.92 : x
2. Step 2: Convert to fraction form
   12,556.38/17,339.52 = 8,087.92/x
3. Step 3: Cross multiply
   12,556.38x = 17,339.52 × 8,087.92
4. Step 4: Simplify right side
   12,556.38x = 140,240,650.60
5. Step 5: Solve for x
   x = 140,240,650.60/12,556.38
6. Step 6: Final answer
   x = 11,168.88