Finding the Fourth Proportional to 11,983.55, 17,975.37 and 3,663.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,983.55 : 17,975.37 = 3,663.54 : x
2. Step 2: Convert to fraction form
   11,983.55/17,975.37 = 3,663.54/x
3. Step 3: Cross multiply
   11,983.55x = 17,975.37 × 3,663.54
4. Step 4: Simplify right side
   11,983.55x = 65,853,487.01
5. Step 5: Solve for x
   x = 65,853,487.01/11,983.55
6. Step 6: Final answer
   x = 5,495.32