Finding the Fourth Proportional to 9,607.69, 13,258.70 and 5,358.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,607.69 : 13,258.70 = 5,358.61 : x
2. Step 2: Convert to fraction form
   9,607.69/13,258.70 = 5,358.61/x
3. Step 3: Cross multiply
   9,607.69x = 13,258.70 × 5,358.61
4. Step 4: Simplify right side
   9,607.69x = 71,048,175.61
5. Step 5: Solve for x
   x = 71,048,175.61/9,607.69
6. Step 6: Final answer
   x = 7,394.93