Finding the Fourth Proportional to 12,185.94, 18,279.56 and 3,866.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.94 : 18,279.56 = 3,866.62 : x
2. Step 2: Convert to fraction form
   12,185.94/18,279.56 = 3,866.62/x
3. Step 3: Cross multiply
   12,185.94x = 18,279.56 × 3,866.62
4. Step 4: Simplify right side
   12,185.94x = 70,680,001.56
5. Step 5: Solve for x
   x = 70,680,001.56/12,185.94
6. Step 6: Final answer
   x = 5,800.13