Finding the Fourth Proportional to 12,162.05, 18,242.58 and 3,842.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,162.05 : 18,242.58 = 3,842.54 : x
2. Step 2: Convert to fraction form
   12,162.05/18,242.58 = 3,842.54/x
3. Step 3: Cross multiply
   12,162.05x = 18,242.58 × 3,842.54
4. Step 4: Simplify right side
   12,162.05x = 70,097,834.96
5. Step 5: Solve for x
   x = 70,097,834.96/12,162.05
6. Step 6: Final answer
   x = 5,763.65