Finding the Fourth Proportional to 11,719.59, 16,175.94 and 7,949.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,719.59 : 16,175.94 = 7,949.06 : x
2. Step 2: Convert to fraction form
   11,719.59/16,175.94 = 7,949.06/x
3. Step 3: Cross multiply
   11,719.59x = 16,175.94 × 7,949.06
4. Step 4: Simplify right side
   11,719.59x = 128,583,546.62
5. Step 5: Solve for x
   x = 128,583,546.62/11,719.59
6. Step 6: Final answer
   x = 10,971.68