Finding the Fourth Proportional to 9,662.06, 13,339.96 and 7,419.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,662.06 : 13,339.96 = 7,419.72 : x
2. Step 2: Convert to fraction form
   9,662.06/13,339.96 = 7,419.72/x
3. Step 3: Cross multiply
   9,662.06x = 13,339.96 × 7,419.72
4. Step 4: Simplify right side
   9,662.06x = 98,978,768.01
5. Step 5: Solve for x
   x = 98,978,768.01/9,662.06
6. Step 6: Final answer
   x = 10,244.06