Finding the Fourth Proportional to 23,476.48, 32,397.62 and 12,721.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,476.48 : 32,397.62 = 12,721.37 : x
2. Step 2: Convert to fraction form
   23,476.48/32,397.62 = 12,721.37/x
3. Step 3: Cross multiply
   23,476.48x = 32,397.62 × 12,721.37
4. Step 4: Simplify right side
   23,476.48x = 412,141,885.54
5. Step 5: Solve for x
   x = 412,141,885.54/23,476.48
6. Step 6: Final answer
   x = 17,555.52