Finding the Fourth Proportional to 5,607.30, 7,729.98 and 3,923.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607.30 : 7,729.98 = 3,923.48 : x
2. Step 2: Convert to fraction form
   5,607.30/7,729.98 = 3,923.48/x
3. Step 3: Cross multiply
   5,607.30x = 7,729.98 × 3,923.48
4. Step 4: Simplify right side
   5,607.30x = 30,328,421.93
5. Step 5: Solve for x
   x = 30,328,421.93/5,607.30
6. Step 6: Final answer
   x = 5,408.74