Finding the Fourth Proportional to 5,111.73, 7,661.41 and 3,628.62

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.73 : 7,661.41 = 3,628.62 : x
2. Step 2: Convert to fraction form
   5,111.73/7,661.41 = 3,628.62/x
3. Step 3: Cross multiply
   5,111.73x = 7,661.41 × 3,628.62
4. Step 4: Simplify right side
   5,111.73x = 27,800,345.55
5. Step 5: Solve for x
   x = 27,800,345.55/5,111.73
6. Step 6: Final answer
   x = 5,438.54