Finding the Fourth Proportional to 11,598.72, 17,367.18 and 7,908.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,598.72 : 17,367.18 = 7,908.18 : x
2. Step 2: Convert to fraction form
   11,598.72/17,367.18 = 7,908.18/x
3. Step 3: Cross multiply
   11,598.72x = 17,367.18 × 7,908.18
4. Step 4: Simplify right side
   11,598.72x = 137,342,785.53
5. Step 5: Solve for x
   x = 137,342,785.53/11,598.72
6. Step 6: Final answer
   x = 11,841.20