Finding the Fourth Proportional to 12,086.05, 18,129.94 and 5,059

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.05 : 18,129.94 = 5,059 : x
2. Step 2: Convert to fraction form
   12,086.05/18,129.94 = 5,059/x
3. Step 3: Cross multiply
   12,086.05x = 18,129.94 × 5,059
4. Step 4: Simplify right side
   12,086.05x = 91,719,366.46
5. Step 5: Solve for x
   x = 91,719,366.46/12,086.05
6. Step 6: Final answer
   x = 7,588.86