Finding the Fourth Proportional to 18,086.94, 27,127.30 and 5,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,086.94 : 27,127.30 = 5,436.50 : x
2. Step 2: Convert to fraction form
   18,086.94/27,127.30 = 5,436.50/x
3. Step 3: Cross multiply
   18,086.94x = 27,127.30 × 5,436.50
4. Step 4: Simplify right side
   18,086.94x = 147,477,566.45
5. Step 5: Solve for x
   x = 147,477,566.45/18,086.94
6. Step 6: Final answer
   x = 8,153.82