Finding the Fourth Proportional to 12,196.84, 18,296.34 and 3,431.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.84 : 18,296.34 = 3,431.83 : x
2. Step 2: Convert to fraction form
   12,196.84/18,296.34 = 3,431.83/x
3. Step 3: Cross multiply
   12,196.84x = 18,296.34 × 3,431.83
4. Step 4: Simplify right side
   12,196.84x = 62,789,928.50
5. Step 5: Solve for x
   x = 62,789,928.50/12,196.84
6. Step 6: Final answer
   x = 5,148.05