Finding the Fourth Proportional to 11,687.43, 17,531.42 and 3,367.65

Step by Step Solution

1. Step 1: Write the proportion equation
   11,687.43 : 17,531.42 = 3,367.65 : x
2. Step 2: Convert to fraction form
   11,687.43/17,531.42 = 3,367.65/x
3. Step 3: Cross multiply
   11,687.43x = 17,531.42 × 3,367.65
4. Step 4: Simplify right side
   11,687.43x = 59,039,669.72
5. Step 5: Solve for x
   x = 59,039,669.72/11,687.43
6. Step 6: Final answer
   x = 5,051.55