Finding the Fourth Proportional to 7,641.87, 10,545.69 and 4,284.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,641.87 : 10,545.69 = 4,284.69 : x
2. Step 2: Convert to fraction form
   7,641.87/10,545.69 = 4,284.69/x
3. Step 3: Cross multiply
   7,641.87x = 10,545.69 × 4,284.69
4. Step 4: Simplify right side
   7,641.87x = 45,185,012.49
5. Step 5: Solve for x
   x = 45,185,012.49/7,641.87
6. Step 6: Final answer
   x = 5,912.82