Finding the Fourth Proportional to 9,651.72, 13,321.62 and 5,461.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,651.72 : 13,321.62 = 5,461.32 : x
2. Step 2: Convert to fraction form
   9,651.72/13,321.62 = 5,461.32/x
3. Step 3: Cross multiply
   9,651.72x = 13,321.62 × 5,461.32
4. Step 4: Simplify right side
   9,651.72x = 72,753,629.74
5. Step 5: Solve for x
   x = 72,753,629.74/9,651.72
6. Step 6: Final answer
   x = 7,537.89