Finding the Fourth Proportional to 7,866.91, 10,856.54 and 4,282.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,866.91 : 10,856.54 = 4,282.10 : x
2. Step 2: Convert to fraction form
   7,866.91/10,856.54 = 4,282.10/x
3. Step 3: Cross multiply
   7,866.91x = 10,856.54 × 4,282.10
4. Step 4: Simplify right side
   7,866.91x = 46,488,768.52
5. Step 5: Solve for x
   x = 46,488,768.52/7,866.91
6. Step 6: Final answer
   x = 5,909.41