Finding the Fourth Proportional to 7,863.81, 11,842.55 and 7,092.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,863.81 : 11,842.55 = 7,092.69 : x
2. Step 2: Convert to fraction form
   7,863.81/11,842.55 = 7,092.69/x
3. Step 3: Cross multiply
   7,863.81x = 11,842.55 × 7,092.69
4. Step 4: Simplify right side
   7,863.81x = 83,995,500.50
5. Step 5: Solve for x
   x = 83,995,500.50/7,863.81
6. Step 6: Final answer
   x = 10,681.27