Finding the Fourth Proportional to 12,059.54, 18,091.91 and 3,739.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,059.54 : 18,091.91 = 3,739.39 : x
2. Step 2: Convert to fraction form
   12,059.54/18,091.91 = 3,739.39/x
3. Step 3: Cross multiply
   12,059.54x = 18,091.91 × 3,739.39
4. Step 4: Simplify right side
   12,059.54x = 67,652,739.30
5. Step 5: Solve for x
   x = 67,652,739.30/12,059.54
6. Step 6: Final answer
   x = 5,609.89