Finding the Fourth Proportional to 23,979, 33,091.17 and 13,077.09

Step by Step Solution

1. Step 1: Write the proportion equation
   23,979 : 33,091.17 = 13,077.09 : x
2. Step 2: Convert to fraction form
   23,979/33,091.17 = 13,077.09/x
3. Step 3: Cross multiply
   23,979x = 33,091.17 × 13,077.09
4. Step 4: Simplify right side
   23,979x = 432,736,208.30
5. Step 5: Solve for x
   x = 432,736,208.30/23,979
6. Step 6: Final answer
   x = 18,046.47