Finding the Fourth Proportional to 8,785.32, 12,123.57 and 4,806.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,785.32 : 12,123.57 = 4,806.30 : x
2. Step 2: Convert to fraction form
   8,785.32/12,123.57 = 4,806.30/x
3. Step 3: Cross multiply
   8,785.32x = 12,123.57 × 4,806.30
4. Step 4: Simplify right side
   8,785.32x = 58,269,514.49
5. Step 5: Solve for x
   x = 58,269,514.49/8,785.32
6. Step 6: Final answer
   x = 6,632.60