Finding the Fourth Proportional to 12,162.06, 18,240.48 and 3,842.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,162.06 : 18,240.48 = 3,842.72 : x
2. Step 2: Convert to fraction form
   12,162.06/18,240.48 = 3,842.72/x
3. Step 3: Cross multiply
   12,162.06x = 18,240.48 × 3,842.72
4. Step 4: Simplify right side
   12,162.06x = 70,093,057.31
5. Step 5: Solve for x
   x = 70,093,057.31/12,162.06
6. Step 6: Final answer
   x = 5,763.26