Finding the Fourth Proportional to 10,908.63, 16,365.65 and 3,513.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,908.63 : 16,365.65 = 3,513.92 : x
2. Step 2: Convert to fraction form
   10,908.63/16,365.65 = 3,513.92/x
3. Step 3: Cross multiply
   10,908.63x = 16,365.65 × 3,513.92
4. Step 4: Simplify right side
   10,908.63x = 57,507,485.45
5. Step 5: Solve for x
   x = 57,507,485.45/10,908.63
6. Step 6: Final answer
   x = 5,271.74