Finding the Fourth Proportional to 10,913.96, 16,371.35 and 3,518.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,913.96 : 16,371.35 = 3,518.53 : x
2. Step 2: Convert to fraction form
   10,913.96/16,371.35 = 3,518.53/x
3. Step 3: Cross multiply
   10,913.96x = 16,371.35 × 3,518.53
4. Step 4: Simplify right side
   10,913.96x = 57,603,027.59
5. Step 5: Solve for x
   x = 57,603,027.59/10,913.96
6. Step 6: Final answer
   x = 5,277.92