Finding the Fourth Proportional to 7,102.78, 9,796.98 and 5,608.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,102.78 : 9,796.98 = 5,608.30 : x
2. Step 2: Convert to fraction form
   7,102.78/9,796.98 = 5,608.30/x
3. Step 3: Cross multiply
   7,102.78x = 9,796.98 × 5,608.30
4. Step 4: Simplify right side
   7,102.78x = 54,944,402.93
5. Step 5: Solve for x
   x = 54,944,402.93/7,102.78
6. Step 6: Final answer
   x = 7,735.62