Finding the Fourth Proportional to 14,478.22, 19,980.72 and 8,104.42

Step by Step Solution

1. Step 1: Write the proportion equation
   14,478.22 : 19,980.72 = 8,104.42 : x
2. Step 2: Convert to fraction form
   14,478.22/19,980.72 = 8,104.42/x
3. Step 3: Cross multiply
   14,478.22x = 19,980.72 × 8,104.42
4. Step 4: Simplify right side
   14,478.22x = 161,932,146.78
5. Step 5: Solve for x
   x = 161,932,146.78/14,478.22
6. Step 6: Final answer
   x = 11,184.53