Finding the Fourth Proportional to 13,665.08, 18,856.86 and 8,075

Step by Step Solution

1. Step 1: Write the proportion equation
   13,665.08 : 18,856.86 = 8,075 : x
2. Step 2: Convert to fraction form
   13,665.08/18,856.86 = 8,075/x
3. Step 3: Cross multiply
   13,665.08x = 18,856.86 × 8,075
4. Step 4: Simplify right side
   13,665.08x = 152,269,144.50
5. Step 5: Solve for x
   x = 152,269,144.50/13,665.08
6. Step 6: Final answer
   x = 11,142.94