Finding the Fourth Proportional to 8,785.28, 12,123.72 and 4,806.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,785.28 : 12,123.72 = 4,806.38 : x
2. Step 2: Convert to fraction form
   8,785.28/12,123.72 = 4,806.38/x
3. Step 3: Cross multiply
   8,785.28x = 12,123.72 × 4,806.38
4. Step 4: Simplify right side
   8,785.28x = 58,271,205.33
5. Step 5: Solve for x
   x = 58,271,205.33/8,785.28
6. Step 6: Final answer
   x = 6,632.82