Finding the Fourth Proportional to 11,600.88, 17,406.18 and 8,339.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,600.88 : 17,406.18 = 8,339.82 : x
2. Step 2: Convert to fraction form
   11,600.88/17,406.18 = 8,339.82/x
3. Step 3: Cross multiply
   11,600.88x = 17,406.18 × 8,339.82
4. Step 4: Simplify right side
   11,600.88x = 145,164,408.09
5. Step 5: Solve for x
   x = 145,164,408.09/11,600.88
6. Step 6: Final answer
   x = 12,513.22