Finding the Fourth Proportional to 11,897.91, 17,874.20 and 8,395.97

Step by Step Solution

1. Step 1: Write the proportion equation
   11,897.91 : 17,874.20 = 8,395.97 : x
2. Step 2: Convert to fraction form
   11,897.91/17,874.20 = 8,395.97/x
3. Step 3: Cross multiply
   11,897.91x = 17,874.20 × 8,395.97
4. Step 4: Simplify right side
   11,897.91x = 150,071,178.59
5. Step 5: Solve for x
   x = 150,071,178.59/11,897.91
6. Step 6: Final answer
   x = 12,613.24