Finding the Fourth Proportional to 11,666.42, 17,375.89 and 11,609.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,666.42 : 17,375.89 = 11,609.92 : x
2. Step 2: Convert to fraction form
   11,666.42/17,375.89 = 11,609.92/x
3. Step 3: Cross multiply
   11,666.42x = 17,375.89 × 11,609.92
4. Step 4: Simplify right side
   11,666.42x = 201,732,692.83
5. Step 5: Solve for x
   x = 201,732,692.83/11,666.42
6. Step 6: Final answer
   x = 17,291.74