Finding the Fourth Proportional to 23,231.74, 32,059.94 and 12,621.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,231.74 : 32,059.94 = 12,621.40 : x
2. Step 2: Convert to fraction form
   23,231.74/32,059.94 = 12,621.40/x
3. Step 3: Cross multiply
   23,231.74x = 32,059.94 × 12,621.40
4. Step 4: Simplify right side
   23,231.74x = 404,641,103.31
5. Step 5: Solve for x
   x = 404,641,103.31/23,231.74
6. Step 6: Final answer
   x = 17,417.60