Finding the Fourth Proportional to 10,828.67, 16,245.02 and 3,431.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,828.67 : 16,245.02 = 3,431.14 : x
2. Step 2: Convert to fraction form
   10,828.67/16,245.02 = 3,431.14/x
3. Step 3: Cross multiply
   10,828.67x = 16,245.02 × 3,431.14
4. Step 4: Simplify right side
   10,828.67x = 55,738,905.89
5. Step 5: Solve for x
   x = 55,738,905.89/10,828.67
6. Step 6: Final answer
   x = 5,147.35