Finding the Fourth Proportional to 31,149.92, 42,986.22 and 17,003

Step by Step Solution

1. Step 1: Write the proportion equation
   31,149.92 : 42,986.22 = 17,003 : x
2. Step 2: Convert to fraction form
   31,149.92/42,986.22 = 17,003/x
3. Step 3: Cross multiply
   31,149.92x = 42,986.22 × 17,003
4. Step 4: Simplify right side
   31,149.92x = 730,894,698.66
5. Step 5: Solve for x
   x = 730,894,698.66/31,149.92
6. Step 6: Final answer
   x = 23,463.77