Finding the Fourth Proportional to 12,075.06, 18,112.38 and 3,309.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,075.06 : 18,112.38 = 3,309.96 : x
2. Step 2: Convert to fraction form
   12,075.06/18,112.38 = 3,309.96/x
3. Step 3: Cross multiply
   12,075.06x = 18,112.38 × 3,309.96
4. Step 4: Simplify right side
   12,075.06x = 59,951,253.30
5. Step 5: Solve for x
   x = 59,951,253.30/12,075.06
6. Step 6: Final answer
   x = 4,964.88