Finding the Fourth Proportional to 9,664.24, 13,343.05 and 7,422.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,664.24 : 13,343.05 = 7,422.10 : x
2. Step 2: Convert to fraction form
   9,664.24/13,343.05 = 7,422.10/x
3. Step 3: Cross multiply
   9,664.24x = 13,343.05 × 7,422.10
4. Step 4: Simplify right side
   9,664.24x = 99,033,451.41
5. Step 5: Solve for x
   x = 99,033,451.41/9,664.24
6. Step 6: Final answer
   x = 10,247.41