Finding the Fourth Proportional to 12,111.91, 18,167.83 and 3,346.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.91 : 18,167.83 = 3,346.80 : x
2. Step 2: Convert to fraction form
   12,111.91/18,167.83 = 3,346.80/x
3. Step 3: Cross multiply
   12,111.91x = 18,167.83 × 3,346.80
4. Step 4: Simplify right side
   12,111.91x = 60,804,093.44
5. Step 5: Solve for x
   x = 60,804,093.44/12,111.91
6. Step 6: Final answer
   x = 5,020.19