Finding the Fourth Proportional to 11,571.68, 17,359.36 and 3,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,571.68 : 17,359.36 = 3,778.72 : x
2. Step 2: Convert to fraction form
   11,571.68/17,359.36 = 3,778.72/x
3. Step 3: Cross multiply
   11,571.68x = 17,359.36 × 3,778.72
4. Step 4: Simplify right side
   11,571.68x = 65,596,160.82
5. Step 5: Solve for x
   x = 65,596,160.82/11,571.68
6. Step 6: Final answer
   x = 5,668.68