Finding the Fourth Proportional to 9,610.20, 13,262.22 and 5,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,610.20 : 13,262.22 = 5,418.72 : x
2. Step 2: Convert to fraction form
   9,610.20/13,262.22 = 5,418.72/x
3. Step 3: Cross multiply
   9,610.20x = 13,262.22 × 5,418.72
4. Step 4: Simplify right side
   9,610.20x = 71,864,256.76
5. Step 5: Solve for x
   x = 71,864,256.76/9,610.20
6. Step 6: Final answer
   x = 7,477.91