Finding the Fourth Proportional to 13,103.78, 19,655.42 and 3,243.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.78 : 19,655.42 = 3,243.06 : x
2. Step 2: Convert to fraction form
   13,103.78/19,655.42 = 3,243.06/x
3. Step 3: Cross multiply
   13,103.78x = 19,655.42 × 3,243.06
4. Step 4: Simplify right side
   13,103.78x = 63,743,714.49
5. Step 5: Solve for x
   x = 63,743,714.49/13,103.78
6. Step 6: Final answer
   x = 4,864.53