Finding the Fourth Proportional to 21,678.59, 32,522.00 and 12,329.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,678.59 : 32,522.00 = 12,329.16 : x
2. Step 2: Convert to fraction form
   21,678.59/32,522.00 = 12,329.16/x
3. Step 3: Cross multiply
   21,678.59x = 32,522.00 × 12,329.16
4. Step 4: Simplify right side
   21,678.59x = 400,968,879.87
5. Step 5: Solve for x
   x = 400,968,879.87/21,678.59
6. Step 6: Final answer
   x = 18,496.08