Finding the Fourth Proportional to 9,861.54, 13,603.86 and 6,674.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,861.54 : 13,603.86 = 6,674.94 : x
2. Step 2: Convert to fraction form
   9,861.54/13,603.86 = 6,674.94/x
3. Step 3: Cross multiply
   9,861.54x = 13,603.86 × 6,674.94
4. Step 4: Simplify right side
   9,861.54x = 90,804,949.27
5. Step 5: Solve for x
   x = 90,804,949.27/9,861.54
6. Step 6: Final answer
   x = 9,207.99