Finding the Fourth Proportional to 12,781.49, 19,146.28 and 6,452.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,781.49 : 19,146.28 = 6,452.46 : x
2. Step 2: Convert to fraction form
   12,781.49/19,146.28 = 6,452.46/x
3. Step 3: Cross multiply
   12,781.49x = 19,146.28 × 6,452.46
4. Step 4: Simplify right side
   12,781.49x = 123,540,477.86
5. Step 5: Solve for x
   x = 123,540,477.86/12,781.49
6. Step 6: Final answer
   x = 9,665.58