Finding the Fourth Proportional to 23,239.82, 32,070.89 and 12,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,239.82 : 32,070.89 = 12,629.50 : x
2. Step 2: Convert to fraction form
   23,239.82/32,070.89 = 12,629.50/x
3. Step 3: Cross multiply
   23,239.82x = 32,070.89 × 12,629.50
4. Step 4: Simplify right side
   23,239.82x = 405,039,256.65
5. Step 5: Solve for x
   x = 405,039,256.65/23,239.82
6. Step 6: Final answer
   x = 17,428.67