Finding the Fourth Proportional to 12,164.55, 18,249.00 and 8,381.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,164.55 : 18,249.00 = 8,381.14 : x
2. Step 2: Convert to fraction form
   12,164.55/18,249.00 = 8,381.14/x
3. Step 3: Cross multiply
   12,164.55x = 18,249.00 × 8,381.14
4. Step 4: Simplify right side
   12,164.55x = 152,947,346.81
5. Step 5: Solve for x
   x = 152,947,346.81/12,164.55
6. Step 6: Final answer
   x = 12,573.21