Finding the Fourth Proportional to 10,965.74, 16,448.81 and 3,570.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,965.74 : 16,448.81 = 3,570.17 : x
2. Step 2: Convert to fraction form
   10,965.74/16,448.81 = 3,570.17/x
3. Step 3: Cross multiply
   10,965.74x = 16,448.81 × 3,570.17
4. Step 4: Simplify right side
   10,965.74x = 58,724,947.90
5. Step 5: Solve for x
   x = 58,724,947.90/10,965.74
6. Step 6: Final answer
   x = 5,355.31