Finding the Fourth Proportional to 11,755.72, 17,636.10 and 3,964.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,755.72 : 17,636.10 = 3,964.42 : x
2. Step 2: Convert to fraction form
   11,755.72/17,636.10 = 3,964.42/x
3. Step 3: Cross multiply
   11,755.72x = 17,636.10 × 3,964.42
4. Step 4: Simplify right side
   11,755.72x = 69,916,907.56
5. Step 5: Solve for x
   x = 69,916,907.56/11,755.72
6. Step 6: Final answer
   x = 5,947.48