Finding the Fourth Proportional to 6,968.72, 9,610.32 and 5,557.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,968.72 : 9,610.32 = 5,557.10 : x
2. Step 2: Convert to fraction form
   6,968.72/9,610.32 = 5,557.10/x
3. Step 3: Cross multiply
   6,968.72x = 9,610.32 × 5,557.10
4. Step 4: Simplify right side
   6,968.72x = 53,405,509.27
5. Step 5: Solve for x
   x = 53,405,509.27/6,968.72
6. Step 6: Final answer
   x = 7,663.60