Finding the Fourth Proportional to 13,822.15, 20,717.82 and 5,499.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,822.15 : 20,717.82 = 5,499.94 : x
2. Step 2: Convert to fraction form
   13,822.15/20,717.82 = 5,499.94/x
3. Step 3: Cross multiply
   13,822.15x = 20,717.82 × 5,499.94
4. Step 4: Simplify right side
   13,822.15x = 113,946,766.93
5. Step 5: Solve for x
   x = 113,946,766.93/13,822.15
6. Step 6: Final answer
   x = 8,243.78