Finding the Fourth Proportional to 12,074.16, 18,110.72 and 3,309.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074.16 : 18,110.72 = 3,309.92 : x
2. Step 2: Convert to fraction form
   12,074.16/18,110.72 = 3,309.92/x
3. Step 3: Cross multiply
   12,074.16x = 18,110.72 × 3,309.92
4. Step 4: Simplify right side
   12,074.16x = 59,945,034.34
5. Step 5: Solve for x
   x = 59,945,034.34/12,074.16
6. Step 6: Final answer
   x = 4,964.74