Finding the Fourth Proportional to 11,776.29, 17,666.15 and 3,982.47

Step by Step Solution

1. Step 1: Write the proportion equation
   11,776.29 : 17,666.15 = 3,982.47 : x
2. Step 2: Convert to fraction form
   11,776.29/17,666.15 = 3,982.47/x
3. Step 3: Cross multiply
   11,776.29x = 17,666.15 × 3,982.47
4. Step 4: Simplify right side
   11,776.29x = 70,354,892.48
5. Step 5: Solve for x
   x = 70,354,892.48/11,776.29
6. Step 6: Final answer
   x = 5,974.28