Finding the Fourth Proportional to 11,108.14, 15,340.71 and 9,608.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,108.14 : 15,340.71 = 9,608.86 : x
2. Step 2: Convert to fraction form
   11,108.14/15,340.71 = 9,608.86/x
3. Step 3: Cross multiply
   11,108.14x = 15,340.71 × 9,608.86
4. Step 4: Simplify right side
   11,108.14x = 147,406,734.69
5. Step 5: Solve for x
   x = 147,406,734.69/11,108.14
6. Step 6: Final answer
   x = 13,270.15