Finding the Fourth Proportional to 21,679.39, 32,492.46 and 12,327.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,679.39 : 32,492.46 = 12,327.25 : x
2. Step 2: Convert to fraction form
   21,679.39/32,492.46 = 12,327.25/x
3. Step 3: Cross multiply
   21,679.39x = 32,492.46 × 12,327.25
4. Step 4: Simplify right side
   21,679.39x = 400,542,677.54
5. Step 5: Solve for x
   x = 400,542,677.54/21,679.39
6. Step 6: Final answer
   x = 18,475.74