Finding the Fourth Proportional to 8,856.82, 13,279.02 and 3,923.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.82 : 13,279.02 = 3,923.78 : x
2. Step 2: Convert to fraction form
   8,856.82/13,279.02 = 3,923.78/x
3. Step 3: Cross multiply
   8,856.82x = 13,279.02 × 3,923.78
4. Step 4: Simplify right side
   8,856.82x = 52,103,953.10
5. Step 5: Solve for x
   x = 52,103,953.10/8,856.82
6. Step 6: Final answer
   x = 5,882.92