Finding the Fourth Proportional to 12,186.32, 18,280.42 and 3,866.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,186.32 : 18,280.42 = 3,866.08 : x
2. Step 2: Convert to fraction form
   12,186.32/18,280.42 = 3,866.08/x
3. Step 3: Cross multiply
   12,186.32x = 18,280.42 × 3,866.08
4. Step 4: Simplify right side
   12,186.32x = 70,673,566.15
5. Step 5: Solve for x
   x = 70,673,566.15/12,186.32
6. Step 6: Final answer
   x = 5,799.42