Finding the Fourth Proportional to 31,175.47, 43,023.32 and 17,028.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,175.47 : 43,023.32 = 17,028.42 : x
2. Step 2: Convert to fraction form
   31,175.47/43,023.32 = 17,028.42/x
3. Step 3: Cross multiply
   31,175.47x = 43,023.32 × 17,028.42
4. Step 4: Simplify right side
   31,175.47x = 732,619,162.75
5. Step 5: Solve for x
   x = 732,619,162.75/31,175.47
6. Step 6: Final answer
   x = 23,499.86