Finding the Fourth Proportional to 12,185.43, 18,280.06 and 5,165.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.43 : 18,280.06 = 5,165.46 : x
2. Step 2: Convert to fraction form
   12,185.43/18,280.06 = 5,165.46/x
3. Step 3: Cross multiply
   12,185.43x = 18,280.06 × 5,165.46
4. Step 4: Simplify right side
   12,185.43x = 94,424,918.73
5. Step 5: Solve for x
   x = 94,424,918.73/12,185.43
6. Step 6: Final answer
   x = 7,749.00