Finding the Fourth Proportional to 5,982.67, 8,969.54 and 4,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,982.67 : 8,969.54 = 4,128.50 : x
2. Step 2: Convert to fraction form
   5,982.67/8,969.54 = 4,128.50/x
3. Step 3: Cross multiply
   5,982.67x = 8,969.54 × 4,128.50
4. Step 4: Simplify right side
   5,982.67x = 37,030,745.89
5. Step 5: Solve for x
   x = 37,030,745.89/5,982.67
6. Step 6: Final answer
   x = 6,189.67