Finding the Fourth Proportional to 23,178.01, 31,987.63 and 13,108.24

Step by Step Solution

1. Step 1: Write the proportion equation
   23,178.01 : 31,987.63 = 13,108.24 : x
2. Step 2: Convert to fraction form
   23,178.01/31,987.63 = 13,108.24/x
3. Step 3: Cross multiply
   23,178.01x = 31,987.63 × 13,108.24
4. Step 4: Simplify right side
   23,178.01x = 419,301,418.33
5. Step 5: Solve for x
   x = 419,301,418.33/23,178.01
6. Step 6: Final answer
   x = 18,090.49