Finding the Fourth Proportional to 5,607.53, 7,735.77 and 3,618.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607.53 : 7,735.77 = 3,618.72 : x
2. Step 2: Convert to fraction form
   5,607.53/7,735.77 = 3,618.72/x
3. Step 3: Cross multiply
   5,607.53x = 7,735.77 × 3,618.72
4. Step 4: Simplify right side
   5,607.53x = 27,993,585.61
5. Step 5: Solve for x
   x = 27,993,585.61/5,607.53
6. Step 6: Final answer
   x = 4,992.15