Finding the Fourth Proportional to 31,150.26, 42,987.41 and 17,003.11

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.26 : 42,987.41 = 17,003.11 : x
2. Step 2: Convert to fraction form
   31,150.26/42,987.41 = 17,003.11/x
3. Step 3: Cross multiply
   31,150.26x = 42,987.41 × 17,003.11
4. Step 4: Simplify right side
   31,150.26x = 730,919,660.85
5. Step 5: Solve for x
   x = 730,919,660.85/31,150.26
6. Step 6: Final answer
   x = 23,464.32