Finding the Fourth Proportional to 11,760.39, 17,642.61 and 3,967.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,760.39 : 17,642.61 = 3,967.38 : x
2. Step 2: Convert to fraction form
   11,760.39/17,642.61 = 3,967.38/x
3. Step 3: Cross multiply
   11,760.39x = 17,642.61 × 3,967.38
4. Step 4: Simplify right side
   11,760.39x = 69,994,938.06
5. Step 5: Solve for x
   x = 69,994,938.06/11,760.39
6. Step 6: Final answer
   x = 5,951.75