Finding the Fourth Proportional to 12,185.01, 18,284.67 and 7,742.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.01 : 18,284.67 = 7,742.48 : x
2. Step 2: Convert to fraction form
   12,185.01/18,284.67 = 7,742.48/x
3. Step 3: Cross multiply
   12,185.01x = 18,284.67 × 7,742.48
4. Step 4: Simplify right side
   12,185.01x = 141,568,600.36
5. Step 5: Solve for x
   x = 141,568,600.36/12,185.01
6. Step 6: Final answer
   x = 11,618.26