Finding the Fourth Proportional to 12,645.33, 18,967.98 and 3,411.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645.33 : 18,967.98 = 3,411.33 : x
2. Step 2: Convert to fraction form
   12,645.33/18,967.98 = 3,411.33/x
3. Step 3: Cross multiply
   12,645.33x = 18,967.98 × 3,411.33
4. Step 4: Simplify right side
   12,645.33x = 64,706,039.21
5. Step 5: Solve for x
   x = 64,706,039.21/12,645.33
6. Step 6: Final answer
   x = 5,116.99