Finding the Fourth Proportional to 17,411.52, 26,120.88 and 8,518.08

Step by Step Solution

1. Step 1: Write the proportion equation
   17,411.52 : 26,120.88 = 8,518.08 : x
2. Step 2: Convert to fraction form
   17,411.52/26,120.88 = 8,518.08/x
3. Step 3: Cross multiply
   17,411.52x = 26,120.88 × 8,518.08
4. Step 4: Simplify right side
   17,411.52x = 222,499,745.51
5. Step 5: Solve for x
   x = 222,499,745.51/17,411.52
6. Step 6: Final answer
   x = 12,778.88