Finding the Fourth Proportional to 23,238.79, 32,069.72 and 12,628.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,238.79 : 32,069.72 = 12,628.42 : x
2. Step 2: Convert to fraction form
   23,238.79/32,069.72 = 12,628.42/x
3. Step 3: Cross multiply
   23,238.79x = 32,069.72 × 12,628.42
4. Step 4: Simplify right side
   23,238.79x = 404,989,893.44
5. Step 5: Solve for x
   x = 404,989,893.44/23,238.79
6. Step 6: Final answer
   x = 17,427.32