Finding the Fourth Proportional to 10,972.95, 16,456.28 and 3,578.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,972.95 : 16,456.28 = 3,578.06 : x
2. Step 2: Convert to fraction form
   10,972.95/16,456.28 = 3,578.06/x
3. Step 3: Cross multiply
   10,972.95x = 16,456.28 × 3,578.06
4. Step 4: Simplify right side
   10,972.95x = 58,881,457.05
5. Step 5: Solve for x
   x = 58,881,457.05/10,972.95
6. Step 6: Final answer
   x = 5,366.06