Finding the Fourth Proportional to 43,167.97, 64,760.72 and 18,208.10

Step by Step Solution

1. Step 1: Write the proportion equation
   43,167.97 : 64,760.72 = 18,208.10 : x
2. Step 2: Convert to fraction form
   43,167.97/64,760.72 = 18,208.10/x
3. Step 3: Cross multiply
   43,167.97x = 64,760.72 × 18,208.10
4. Step 4: Simplify right side
   43,167.97x = 1,179,169,736.69
5. Step 5: Solve for x
   x = 1,179,169,736.69/43,167.97
6. Step 6: Final answer
   x = 27,315.85