Finding the Fourth Proportional to 9,340.62, 12,891.87 and 5,364.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,340.62 : 12,891.87 = 5,364.42 : x
2. Step 2: Convert to fraction form
   9,340.62/12,891.87 = 5,364.42/x
3. Step 3: Cross multiply
   9,340.62x = 12,891.87 × 5,364.42
4. Step 4: Simplify right side
   9,340.62x = 69,157,405.27
5. Step 5: Solve for x
   x = 69,157,405.27/9,340.62
6. Step 6: Final answer
   x = 7,403.94