Finding the Fourth Proportional to 12,169.31, 18,253.98 and 3,404.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,169.31 : 18,253.98 = 3,404.30 : x
2. Step 2: Convert to fraction form
   12,169.31/18,253.98 = 3,404.30/x
3. Step 3: Cross multiply
   12,169.31x = 18,253.98 × 3,404.30
4. Step 4: Simplify right side
   12,169.31x = 62,141,932.84
5. Step 5: Solve for x
   x = 62,141,932.84/12,169.31
6. Step 6: Final answer
   x = 5,106.45