Finding the Fourth Proportional to 10,825.12, 16,236.06 and 3,428.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,825.12 : 16,236.06 = 3,428.62 : x
2. Step 2: Convert to fraction form
   10,825.12/16,236.06 = 3,428.62/x
3. Step 3: Cross multiply
   10,825.12x = 16,236.06 × 3,428.62
4. Step 4: Simplify right side
   10,825.12x = 55,667,280.04
5. Step 5: Solve for x
   x = 55,667,280.04/10,825.12
6. Step 6: Final answer
   x = 5,142.42