Finding the Fourth Proportional to 10,185.77, 15,281.09 and 3,945.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.77 : 15,281.09 = 3,945.94 : x
2. Step 2: Convert to fraction form
   10,185.77/15,281.09 = 3,945.94/x
3. Step 3: Cross multiply
   10,185.77x = 15,281.09 × 3,945.94
4. Step 4: Simplify right side
   10,185.77x = 60,298,168.14
5. Step 5: Solve for x
   x = 60,298,168.14/10,185.77
6. Step 6: Final answer
   x = 5,919.84