Finding the Fourth Proportional to 11,789.37, 17,673.12 and 3,992.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,789.37 : 17,673.12 = 3,992.73 : x
2. Step 2: Convert to fraction form
   11,789.37/17,673.12 = 3,992.73/x
3. Step 3: Cross multiply
   11,789.37x = 17,673.12 × 3,992.73
4. Step 4: Simplify right side
   11,789.37x = 70,563,996.42
5. Step 5: Solve for x
   x = 70,563,996.42/11,789.37
6. Step 6: Final answer
   x = 5,985.39