Finding the Fourth Proportional to 12,164.35, 18,235.55 and 4,371.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,164.35 : 18,235.55 = 4,371.34 : x
2. Step 2: Convert to fraction form
   12,164.35/18,235.55 = 4,371.34/x
3. Step 3: Cross multiply
   12,164.35x = 18,235.55 × 4,371.34
4. Step 4: Simplify right side
   12,164.35x = 79,713,721.69
5. Step 5: Solve for x
   x = 79,713,721.69/12,164.35
6. Step 6: Final answer
   x = 6,553.06