Finding the Fourth Proportional to 11,691.42, 17,537.18 and 2,926.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,691.42 : 17,537.18 = 2,926.30 : x
2. Step 2: Convert to fraction form
   11,691.42/17,537.18 = 2,926.30/x
3. Step 3: Cross multiply
   11,691.42x = 17,537.18 × 2,926.30
4. Step 4: Simplify right side
   11,691.42x = 51,319,049.83
5. Step 5: Solve for x
   x = 51,319,049.83/11,691.42
6. Step 6: Final answer
   x = 4,389.46