Finding the Fourth Proportional to 8,665.12, 12,996.56 and 3,471.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,665.12 : 12,996.56 = 3,471.04 : x
2. Step 2: Convert to fraction form
   8,665.12/12,996.56 = 3,471.04/x
3. Step 3: Cross multiply
   8,665.12x = 12,996.56 × 3,471.04
4. Step 4: Simplify right side
   8,665.12x = 45,111,579.62
5. Step 5: Solve for x
   x = 45,111,579.62/8,665.12
6. Step 6: Final answer
   x = 5,206.11