Finding the Fourth Proportional to 9,336.67, 12,884.47 and 5,357.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.67 : 12,884.47 = 5,357.54 : x
2. Step 2: Convert to fraction form
   9,336.67/12,884.47 = 5,357.54/x
3. Step 3: Cross multiply
   9,336.67x = 12,884.47 × 5,357.54
4. Step 4: Simplify right side
   9,336.67x = 69,029,082.22
5. Step 5: Solve for x
   x = 69,029,082.22/9,336.67
6. Step 6: Final answer
   x = 7,393.33