Finding the Fourth Proportional to 11,768.81, 17,651.34 and 3,446.87

Step by Step Solution

1. Step 1: Write the proportion equation
   11,768.81 : 17,651.34 = 3,446.87 : x
2. Step 2: Convert to fraction form
   11,768.81/17,651.34 = 3,446.87/x
3. Step 3: Cross multiply
   11,768.81x = 17,651.34 × 3,446.87
4. Step 4: Simplify right side
   11,768.81x = 60,841,786.05
5. Step 5: Solve for x
   x = 60,841,786.05/11,768.81
6. Step 6: Final answer
   x = 5,169.75