Finding the Fourth Proportional to 8,513.10, 12,769.52 and 2,669.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,513.10 : 12,769.52 = 2,669.76 : x
2. Step 2: Convert to fraction form
   8,513.10/12,769.52 = 2,669.76/x
3. Step 3: Cross multiply
   8,513.10x = 12,769.52 × 2,669.76
4. Step 4: Simplify right side
   8,513.10x = 34,091,540.37
5. Step 5: Solve for x
   x = 34,091,540.37/8,513.10
6. Step 6: Final answer
   x = 4,004.60