Finding the Fourth Proportional to 12,208.51, 18,312.67 and 3,443.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,208.51 : 18,312.67 = 3,443.37 : x
2. Step 2: Convert to fraction form
   12,208.51/18,312.67 = 3,443.37/x
3. Step 3: Cross multiply
   12,208.51x = 18,312.67 × 3,443.37
4. Step 4: Simplify right side
   12,208.51x = 63,057,298.50
5. Step 5: Solve for x
   x = 63,057,298.50/12,208.51
6. Step 6: Final answer
   x = 5,165.03