Finding the Fourth Proportional to 12,209.59, 18,314.43 and 3,444.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,209.59 : 18,314.43 = 3,444.58 : x
2. Step 2: Convert to fraction form
   12,209.59/18,314.43 = 3,444.58/x
3. Step 3: Cross multiply
   12,209.59x = 18,314.43 × 3,444.58
4. Step 4: Simplify right side
   12,209.59x = 63,085,519.29
5. Step 5: Solve for x
   x = 63,085,519.29/12,209.59
6. Step 6: Final answer
   x = 5,166.88