Finding the Fourth Proportional to 11,961.04, 17,940.15 and 3,196.63

Step by Step Solution

1. Step 1: Write the proportion equation
   11,961.04 : 17,940.15 = 3,196.63 : x
2. Step 2: Convert to fraction form
   11,961.04/17,940.15 = 3,196.63/x
3. Step 3: Cross multiply
   11,961.04x = 17,940.15 × 3,196.63
4. Step 4: Simplify right side
   11,961.04x = 57,348,021.69
5. Step 5: Solve for x
   x = 57,348,021.69/11,961.04
6. Step 6: Final answer
   x = 4,794.57