Finding the Fourth Proportional to 9,336.74, 12,884.59 and 5,358.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.74 : 12,884.59 = 5,358.48 : x
2. Step 2: Convert to fraction form
   9,336.74/12,884.59 = 5,358.48/x
3. Step 3: Cross multiply
   9,336.74x = 12,884.59 × 5,358.48
4. Step 4: Simplify right side
   9,336.74x = 69,041,776.20
5. Step 5: Solve for x
   x = 69,041,776.20/9,336.74
6. Step 6: Final answer
   x = 7,394.64