Finding the Fourth Proportional to 31,103.21, 42,923.53 and 17,675.03

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103.21 : 42,923.53 = 17,675.03 : x
2. Step 2: Convert to fraction form
   31,103.21/42,923.53 = 17,675.03/x
3. Step 3: Cross multiply
   31,103.21x = 42,923.53 × 17,675.03
4. Step 4: Simplify right side
   31,103.21x = 758,674,680.46
5. Step 5: Solve for x
   x = 758,674,680.46/31,103.21
6. Step 6: Final answer
   x = 24,392.17