Finding the Fourth Proportional to 12,111.23, 18,167.90 and 3,346.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.23 : 18,167.90 = 3,346.15 : x
2. Step 2: Convert to fraction form
   12,111.23/18,167.90 = 3,346.15/x
3. Step 3: Cross multiply
   12,111.23x = 18,167.90 × 3,346.15
4. Step 4: Simplify right side
   12,111.23x = 60,792,501.85
5. Step 5: Solve for x
   x = 60,792,501.85/12,111.23
6. Step 6: Final answer
   x = 5,019.52