Finding the Fourth Proportional to 12,968.30, 17,896.48 and 7,663.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,968.30 : 17,896.48 = 7,663.10 : x
2. Step 2: Convert to fraction form
   12,968.30/17,896.48 = 7,663.10/x
3. Step 3: Cross multiply
   12,968.30x = 17,896.48 × 7,663.10
4. Step 4: Simplify right side
   12,968.30x = 137,142,515.89
5. Step 5: Solve for x
   x = 137,142,515.89/12,968.30
6. Step 6: Final answer
   x = 10,575.21