Finding the Fourth Proportional to 11,753.67, 17,631.72 and 3,963.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,753.67 : 17,631.72 = 3,963.09 : x
2. Step 2: Convert to fraction form
   11,753.67/17,631.72 = 3,963.09/x
3. Step 3: Cross multiply
   11,753.67x = 17,631.72 × 3,963.09
4. Step 4: Simplify right side
   11,753.67x = 69,876,093.21
5. Step 5: Solve for x
   x = 69,876,093.21/11,753.67
6. Step 6: Final answer
   x = 5,945.04