Finding the Fourth Proportional to 3,767.74, 5,629.32 and 3,638.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,767.74 : 5,629.32 = 3,638.54 : x
2. Step 2: Convert to fraction form
   3,767.74/5,629.32 = 3,638.54/x
3. Step 3: Cross multiply
   3,767.74x = 5,629.32 × 3,638.54
4. Step 4: Simplify right side
   3,767.74x = 20,482,520.07
5. Step 5: Solve for x
   x = 20,482,520.07/3,767.74
6. Step 6: Final answer
   x = 5,436.29