Finding the Fourth Proportional to 23,080.34, 34,591.34 and 11,989.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,080.34 : 34,591.34 = 11,989.82 : x
2. Step 2: Convert to fraction form
   23,080.34/34,591.34 = 11,989.82/x
3. Step 3: Cross multiply
   23,080.34x = 34,591.34 × 11,989.82
4. Step 4: Simplify right side
   23,080.34x = 414,743,940.16
5. Step 5: Solve for x
   x = 414,743,940.16/23,080.34
6. Step 6: Final answer
   x = 17,969.58