Finding the Fourth Proportional to 10,821.45, 16,234.00 and 3,427.97

Step by Step Solution

1. Step 1: Write the proportion equation
   10,821.45 : 16,234.00 = 3,427.97 : x
2. Step 2: Convert to fraction form
   10,821.45/16,234.00 = 3,427.97/x
3. Step 3: Cross multiply
   10,821.45x = 16,234.00 × 3,427.97
4. Step 4: Simplify right side
   10,821.45x = 55,649,647.84
5. Step 5: Solve for x
   x = 55,649,647.84/10,821.45
6. Step 6: Final answer
   x = 5,142.53