Finding the Fourth Proportional to 9,336.42, 13,990.56 and 5,634.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.42 : 13,990.56 = 5,634.54 : x
2. Step 2: Convert to fraction form
   9,336.42/13,990.56 = 5,634.54/x
3. Step 3: Cross multiply
   9,336.42x = 13,990.56 × 5,634.54
4. Step 4: Simplify right side
   9,336.42x = 78,830,369.94
5. Step 5: Solve for x
   x = 78,830,369.94/9,336.42
6. Step 6: Final answer
   x = 8,443.32