Finding the Fourth Proportional to 13,510.49, 18,645.33 and 8,965.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,510.49 : 18,645.33 = 8,965.37 : x
2. Step 2: Convert to fraction form
   13,510.49/18,645.33 = 8,965.37/x
3. Step 3: Cross multiply
   13,510.49x = 18,645.33 × 8,965.37
4. Step 4: Simplify right side
   13,510.49x = 167,162,189.00
5. Step 5: Solve for x
   x = 167,162,189.00/13,510.49
6. Step 6: Final answer
   x = 12,372.77