Finding the Fourth Proportional to 12,054.60, 18,081.72 and 3,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,054.60 : 18,081.72 = 3,289.50 : x
2. Step 2: Convert to fraction form
   12,054.60/18,081.72 = 3,289.50/x
3. Step 3: Cross multiply
   12,054.60x = 18,081.72 × 3,289.50
4. Step 4: Simplify right side
   12,054.60x = 59,479,817.94
5. Step 5: Solve for x
   x = 59,479,817.94/12,054.60
6. Step 6: Final answer
   x = 4,934.20