Finding the Fourth Proportional to 11,689.32, 17,531.40 and 3,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,689.32 : 17,531.40 = 3,367.50 : x
2. Step 2: Convert to fraction form
   11,689.32/17,531.40 = 3,367.50/x
3. Step 3: Cross multiply
   11,689.32x = 17,531.40 × 3,367.50
4. Step 4: Simplify right side
   11,689.32x = 59,036,989.50
5. Step 5: Solve for x
   x = 59,036,989.50/11,689.32
6. Step 6: Final answer
   x = 5,050.51