Finding the Fourth Proportional to 12,863.48, 19,282.91 and 4,092.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,863.48 : 19,282.91 = 4,092.69 : x
2. Step 2: Convert to fraction form
   12,863.48/19,282.91 = 4,092.69/x
3. Step 3: Cross multiply
   12,863.48x = 19,282.91 × 4,092.69
4. Step 4: Simplify right side
   12,863.48x = 78,918,952.46
5. Step 5: Solve for x
   x = 78,918,952.46/12,863.48
6. Step 6: Final answer
   x = 6,135.12