Finding the Fourth Proportional to 12,046.86, 18,066.12 and 5,721

Step by Step Solution

1. Step 1: Write the proportion equation
   12,046.86 : 18,066.12 = 5,721 : x
2. Step 2: Convert to fraction form
   12,046.86/18,066.12 = 5,721/x
3. Step 3: Cross multiply
   12,046.86x = 18,066.12 × 5,721
4. Step 4: Simplify right side
   12,046.86x = 103,356,272.52
5. Step 5: Solve for x
   x = 103,356,272.52/12,046.86
6. Step 6: Final answer
   x = 8,579.52