Finding the Fourth Proportional to 12,059.55, 18,087.71 and 4,273.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,059.55 : 18,087.71 = 4,273.83 : x
2. Step 2: Convert to fraction form
   12,059.55/18,087.71 = 4,273.83/x
3. Step 3: Cross multiply
   12,059.55x = 18,087.71 × 4,273.83
4. Step 4: Simplify right side
   12,059.55x = 77,303,776.26
5. Step 5: Solve for x
   x = 77,303,776.26/12,059.55
6. Step 6: Final answer
   x = 6,410.17