Finding the Fourth Proportional to 11,789.75, 17,689.34 and 4,293.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,789.75 : 17,689.34 = 4,293.83 : x
2. Step 2: Convert to fraction form
   11,789.75/17,689.34 = 4,293.83/x
3. Step 3: Cross multiply
   11,789.75x = 17,689.34 × 4,293.83
4. Step 4: Simplify right side
   11,789.75x = 75,954,998.86
5. Step 5: Solve for x
   x = 75,954,998.86/11,789.75
6. Step 6: Final answer
   x = 6,442.46