Finding the Fourth Proportional to 11,897, 17,846.60 and 3,131.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,897 : 17,846.60 = 3,131.96 : x
2. Step 2: Convert to fraction form
   11,897/17,846.60 = 3,131.96/x
3. Step 3: Cross multiply
   11,897x = 17,846.60 × 3,131.96
4. Step 4: Simplify right side
   11,897x = 55,894,837.34
5. Step 5: Solve for x
   x = 55,894,837.34/11,897
6. Step 6: Final answer
   x = 4,698.23