Finding the Fourth Proportional to 11,662.20, 17,488.94 and 3,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,662.20 : 17,488.94 = 3,762.72 : x
2. Step 2: Convert to fraction form
   11,662.20/17,488.94 = 3,762.72/x
3. Step 3: Cross multiply
   11,662.20x = 17,488.94 × 3,762.72
4. Step 4: Simplify right side
   11,662.20x = 65,805,965.50
5. Step 5: Solve for x
   x = 65,805,965.50/11,662.20
6. Step 6: Final answer
   x = 5,642.67