Finding the Fourth Proportional to 23,238.72, 32,070.24 and 12,629.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,238.72 : 32,070.24 = 12,629.16 : x
2. Step 2: Convert to fraction form
   23,238.72/32,070.24 = 12,629.16/x
3. Step 3: Cross multiply
   23,238.72x = 32,070.24 × 12,629.16
4. Step 4: Simplify right side
   23,238.72x = 405,020,192.20
5. Step 5: Solve for x
   x = 405,020,192.20/23,238.72
6. Step 6: Final answer
   x = 17,428.68