Finding the Fourth Proportional to 58,144.72, 87,161.71 and 18,674.15

Step by Step Solution

1. Step 1: Write the proportion equation
   58,144.72 : 87,161.71 = 18,674.15 : x
2. Step 2: Convert to fraction form
   58,144.72/87,161.71 = 18,674.15/x
3. Step 3: Cross multiply
   58,144.72x = 87,161.71 × 18,674.15
4. Step 4: Simplify right side
   58,144.72x = 1,627,670,846.80
5. Step 5: Solve for x
   x = 1,627,670,846.80/58,144.72
6. Step 6: Final answer
   x = 27,993.44