Finding the Fourth Proportional to 3,665.07, 5,091.71 and 3,630.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.07 : 5,091.71 = 3,630.96 : x
2. Step 2: Convert to fraction form
   3,665.07/5,091.71 = 3,630.96/x
3. Step 3: Cross multiply
   3,665.07x = 5,091.71 × 3,630.96
4. Step 4: Simplify right side
   3,665.07x = 18,487,777.19
5. Step 5: Solve for x
   x = 18,487,777.19/3,665.07
6. Step 6: Final answer
   x = 5,044.32