Finding the Fourth Proportional to 8,082.45, 12,104.33 and 4,785.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,082.45 : 12,104.33 = 4,785.57 : x
2. Step 2: Convert to fraction form
   8,082.45/12,104.33 = 4,785.57/x
3. Step 3: Cross multiply
   8,082.45x = 12,104.33 × 4,785.57
4. Step 4: Simplify right side
   8,082.45x = 57,926,094.59
5. Step 5: Solve for x
   x = 57,926,094.59/8,082.45
6. Step 6: Final answer
   x = 7,166.90