Finding the Fourth Proportional to 12,057.84, 18,084.42 and 3,290.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,057.84 : 18,084.42 = 3,290.52 : x
2. Step 2: Convert to fraction form
   12,057.84/18,084.42 = 3,290.52/x
3. Step 3: Cross multiply
   12,057.84x = 18,084.42 × 3,290.52
4. Step 4: Simplify right side
   12,057.84x = 59,507,145.70
5. Step 5: Solve for x
   x = 59,507,145.70/12,057.84
6. Step 6: Final answer
   x = 4,935.14