Finding the Fourth Proportional to 9,650.12, 13,315.74 and 5,458.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,650.12 : 13,315.74 = 5,458.28 : x
2. Step 2: Convert to fraction form
   9,650.12/13,315.74 = 5,458.28/x
3. Step 3: Cross multiply
   9,650.12x = 13,315.74 × 5,458.28
4. Step 4: Simplify right side
   9,650.12x = 72,681,037.33
5. Step 5: Solve for x
   x = 72,681,037.33/9,650.12
6. Step 6: Final answer
   x = 7,531.62