Finding the Fourth Proportional to 31,071.14, 42,879.23 and 17,641.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,071.14 : 42,879.23 = 17,641.94 : x
2. Step 2: Convert to fraction form
   31,071.14/42,879.23 = 17,641.94/x
3. Step 3: Cross multiply
   31,071.14x = 42,879.23 × 17,641.94
4. Step 4: Simplify right side
   31,071.14x = 756,472,954.21
5. Step 5: Solve for x
   x = 756,472,954.21/31,071.14
6. Step 6: Final answer
   x = 24,346.49