Finding the Fourth Proportional to 10,972.67, 16,459.61 and 3,578.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,972.67 : 16,459.61 = 3,578.18 : x
2. Step 2: Convert to fraction form
   10,972.67/16,459.61 = 3,578.18/x
3. Step 3: Cross multiply
   10,972.67x = 16,459.61 × 3,578.18
4. Step 4: Simplify right side
   10,972.67x = 58,895,347.12
5. Step 5: Solve for x
   x = 58,895,347.12/10,972.67
6. Step 6: Final answer
   x = 5,367.46