Finding the Fourth Proportional to 31,150.22, 42,987.29 and 17,003.07

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.22 : 42,987.29 = 17,003.07 : x
2. Step 2: Convert to fraction form
   31,150.22/42,987.29 = 17,003.07/x
3. Step 3: Cross multiply
   31,150.22x = 42,987.29 × 17,003.07
4. Step 4: Simplify right side
   31,150.22x = 730,915,900.98
5. Step 5: Solve for x
   x = 730,915,900.98/31,150.22
6. Step 6: Final answer
   x = 23,464.23