Finding the Fourth Proportional to 5,607.24, 7,734.78 and 3,507.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607.24 : 7,734.78 = 3,507.72 : x
2. Step 2: Convert to fraction form
   5,607.24/7,734.78 = 3,507.72/x
3. Step 3: Cross multiply
   5,607.24x = 7,734.78 × 3,507.72
4. Step 4: Simplify right side
   5,607.24x = 27,131,442.50
5. Step 5: Solve for x
   x = 27,131,442.50/5,607.24
6. Step 6: Final answer
   x = 4,838.64