Finding the Fourth Proportional to 12,283.02, 18,428.17 and 5,713.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,283.02 : 18,428.17 = 5,713.10 : x
2. Step 2: Convert to fraction form
   12,283.02/18,428.17 = 5,713.10/x
3. Step 3: Cross multiply
   12,283.02x = 18,428.17 × 5,713.10
4. Step 4: Simplify right side
   12,283.02x = 105,281,978.03
5. Step 5: Solve for x
   x = 105,281,978.03/12,283.02
6. Step 6: Final answer
   x = 8,571.34