Finding the Fourth Proportional to 12,162.15, 18,242.96 and 3,396.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,162.15 : 18,242.96 = 3,396.87 : x
2. Step 2: Convert to fraction form
   12,162.15/18,242.96 = 3,396.87/x
3. Step 3: Cross multiply
   12,162.15x = 18,242.96 × 3,396.87
4. Step 4: Simplify right side
   12,162.15x = 61,968,946.55
5. Step 5: Solve for x
   x = 61,968,946.55/12,162.15
6. Step 6: Final answer
   x = 5,095.23