Finding the Fourth Proportional to 9,336.84, 12,884.74 and 5,087.85

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.84 : 12,884.74 = 5,087.85 : x
2. Step 2: Convert to fraction form
   9,336.84/12,884.74 = 5,087.85/x
3. Step 3: Cross multiply
   9,336.84x = 12,884.74 × 5,087.85
4. Step 4: Simplify right side
   9,336.84x = 65,555,624.41
5. Step 5: Solve for x
   x = 65,555,624.41/9,336.84
6. Step 6: Final answer
   x = 7,021.18