Finding the Fourth Proportional to 9,647.72, 13,291.62 and 7,407.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,647.72 : 13,291.62 = 7,407.08 : x
2. Step 2: Convert to fraction form
   9,647.72/13,291.62 = 7,407.08/x
3. Step 3: Cross multiply
   9,647.72x = 13,291.62 × 7,407.08
4. Step 4: Simplify right side
   9,647.72x = 98,452,092.67
5. Step 5: Solve for x
   x = 98,452,092.67/9,647.72
6. Step 6: Final answer
   x = 10,204.70