Finding the Fourth Proportional to 10,823.12, 16,234.16 and 3,428.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,823.12 : 16,234.16 = 3,428.00 : x
2. Step 2: Convert to fraction form
   10,823.12/16,234.16 = 3,428.00/x
3. Step 3: Cross multiply
   10,823.12x = 16,234.16 × 3,428.00
4. Step 4: Simplify right side
   10,823.12x = 55,650,627.88
5. Step 5: Solve for x
   x = 55,650,627.88/10,823.12
6. Step 6: Final answer
   x = 5,141.83