Finding the Fourth Proportional to 31,073.04, 42,879.15 and 17,643.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,073.04 : 42,879.15 = 17,643.96 : x
2. Step 2: Convert to fraction form
   31,073.04/42,879.15 = 17,643.96/x
3. Step 3: Cross multiply
   31,073.04x = 42,879.15 × 17,643.96
4. Step 4: Simplify right side
   31,073.04x = 756,558,007.43
5. Step 5: Solve for x
   x = 756,558,007.43/31,073.04
6. Step 6: Final answer
   x = 24,347.73