Finding the Fourth Proportional to 8,769.72, 12,102.12 and 4,790.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,769.72 : 12,102.12 = 4,790.82 : x
2. Step 2: Convert to fraction form
   8,769.72/12,102.12 = 4,790.82/x
3. Step 3: Cross multiply
   8,769.72x = 12,102.12 × 4,790.82
4. Step 4: Simplify right side
   8,769.72x = 57,979,078.54
5. Step 5: Solve for x
   x = 57,979,078.54/8,769.72
6. Step 6: Final answer
   x = 6,611.28