Finding the Fourth Proportional to 9,315.37, 12,855.37 and 5,336.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315.37 : 12,855.37 = 5,336.83 : x
2. Step 2: Convert to fraction form
   9,315.37/12,855.37 = 5,336.83/x
3. Step 3: Cross multiply
   9,315.37x = 12,855.37 × 5,336.83
4. Step 4: Simplify right side
   9,315.37x = 68,606,924.28
5. Step 5: Solve for x
   x = 68,606,924.28/9,315.37
6. Step 6: Final answer
   x = 7,364.92