Finding the Fourth Proportional to 9,662.96, 13,341.29 and 7,420.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,662.96 : 13,341.29 = 7,420.82 : x
2. Step 2: Convert to fraction form
   9,662.96/13,341.29 = 7,420.82/x
3. Step 3: Cross multiply
   9,662.96x = 13,341.29 × 7,420.82
4. Step 4: Simplify right side
   9,662.96x = 99,003,207.85
5. Step 5: Solve for x
   x = 99,003,207.85/9,662.96
6. Step 6: Final answer
   x = 10,245.64