Finding the Fourth Proportional to 12,112.37, 18,152.84 and 5,443.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,112.37 : 18,152.84 = 5,443.94 : x
2. Step 2: Convert to fraction form
   12,112.37/18,152.84 = 5,443.94/x
3. Step 3: Cross multiply
   12,112.37x = 18,152.84 × 5,443.94
4. Step 4: Simplify right side
   12,112.37x = 98,823,003.56
5. Step 5: Solve for x
   x = 98,823,003.56/12,112.37
6. Step 6: Final answer
   x = 8,158.85