Finding the Fourth Proportional to 11,781.72, 17,672.18 and 3,016.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,781.72 : 17,672.18 = 3,016.71 : x
2. Step 2: Convert to fraction form
   11,781.72/17,672.18 = 3,016.71/x
3. Step 3: Cross multiply
   11,781.72x = 17,672.18 × 3,016.71
4. Step 4: Simplify right side
   11,781.72x = 53,311,827.04
5. Step 5: Solve for x
   x = 53,311,827.04/11,781.72
6. Step 6: Final answer
   x = 4,524.96