Finding the Fourth Proportional to 12,019.78, 16,587.56 and 6,714.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.78 : 16,587.56 = 6,714.60 : x
2. Step 2: Convert to fraction form
   12,019.78/16,587.56 = 6,714.60/x
3. Step 3: Cross multiply
   12,019.78x = 16,587.56 × 6,714.60
4. Step 4: Simplify right side
   12,019.78x = 111,378,796.80
5. Step 5: Solve for x
   x = 111,378,796.80/12,019.78
6. Step 6: Final answer
   x = 9,266.29