Finding the Fourth Proportional to 7,018.20, 9,689.76 and 4,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.20 : 9,689.76 = 4,369.50 : x
2. Step 2: Convert to fraction form
   7,018.20/9,689.76 = 4,369.50/x
3. Step 3: Cross multiply
   7,018.20x = 9,689.76 × 4,369.50
4. Step 4: Simplify right side
   7,018.20x = 42,339,406.32
5. Step 5: Solve for x
   x = 42,339,406.32/7,018.20
6. Step 6: Final answer
   x = 6,032.80