Finding the Fourth Proportional to 12,105.93, 18,158.77 and 3,786.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,105.93 : 18,158.77 = 3,786.01 : x
2. Step 2: Convert to fraction form
   12,105.93/18,158.77 = 3,786.01/x
3. Step 3: Cross multiply
   12,105.93x = 18,158.77 × 3,786.01
4. Step 4: Simplify right side
   12,105.93x = 68,749,284.81
5. Step 5: Solve for x
   x = 68,749,284.81/12,105.93
6. Step 6: Final answer
   x = 5,678.98