Finding the Fourth Proportional to 10,961.16, 16,439.82 and 3,564.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,961.16 : 16,439.82 = 3,564.54 : x
2. Step 2: Convert to fraction form
   10,961.16/16,439.82 = 3,564.54/x
3. Step 3: Cross multiply
   10,961.16x = 16,439.82 × 3,564.54
4. Step 4: Simplify right side
   10,961.16x = 58,600,395.98
5. Step 5: Solve for x
   x = 58,600,395.98/10,961.16
6. Step 6: Final answer
   x = 5,346.19