Finding the Fourth Proportional to 13,112.40, 18,096.56 and 8,075.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,112.40 : 18,096.56 = 8,075.61 : x
2. Step 2: Convert to fraction form
   13,112.40/18,096.56 = 8,075.61/x
3. Step 3: Cross multiply
   13,112.40x = 18,096.56 × 8,075.61
4. Step 4: Simplify right side
   13,112.40x = 146,140,720.52
5. Step 5: Solve for x
   x = 146,140,720.52/13,112.40
6. Step 6: Final answer
   x = 11,145.23