Finding the Fourth Proportional to 12,067.30, 18,086.55 and 5,047.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,067.30 : 18,086.55 = 5,047.30 : x
2. Step 2: Convert to fraction form
   12,067.30/18,086.55 = 5,047.30/x
3. Step 3: Cross multiply
   12,067.30x = 18,086.55 × 5,047.30
4. Step 4: Simplify right side
   12,067.30x = 91,288,243.82
5. Step 5: Solve for x
   x = 91,288,243.82/12,067.30
6. Step 6: Final answer
   x = 7,564.93