Finding the Fourth Proportional to 23,275.89, 32,127.32 and 13,721.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,275.89 : 32,127.32 = 13,721.31 : x
2. Step 2: Convert to fraction form
   23,275.89/32,127.32 = 13,721.31/x
3. Step 3: Cross multiply
   23,275.89x = 32,127.32 × 13,721.31
4. Step 4: Simplify right side
   23,275.89x = 440,828,917.19
5. Step 5: Solve for x
   x = 440,828,917.19/23,275.89
6. Step 6: Final answer
   x = 18,939.29