Finding the Fourth Proportional to 13,784.54, 20,672.18 and 5,467.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,784.54 : 20,672.18 = 5,467.42 : x
2. Step 2: Convert to fraction form
   13,784.54/20,672.18 = 5,467.42/x
3. Step 3: Cross multiply
   13,784.54x = 20,672.18 × 5,467.42
4. Step 4: Simplify right side
   13,784.54x = 113,023,359.68
5. Step 5: Solve for x
   x = 113,023,359.68/13,784.54
6. Step 6: Final answer
   x = 8,199.28