Finding the Fourth Proportional to 12,863.69, 19,295.33 and 4,098.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,863.69 : 19,295.33 = 4,098.54 : x
2. Step 2: Convert to fraction form
   12,863.69/19,295.33 = 4,098.54/x
3. Step 3: Cross multiply
   12,863.69x = 19,295.33 × 4,098.54
4. Step 4: Simplify right side
   12,863.69x = 79,082,661.33
5. Step 5: Solve for x
   x = 79,082,661.33/12,863.69
6. Step 6: Final answer
   x = 6,147.75