Finding the Fourth Proportional to 31,155.24, 42,994.02 and 17,007.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,155.24 : 42,994.02 = 17,007.96 : x
2. Step 2: Convert to fraction form
   31,155.24/42,994.02 = 17,007.96/x
3. Step 3: Cross multiply
   31,155.24x = 42,994.02 × 17,007.96
4. Step 4: Simplify right side
   31,155.24x = 731,240,572.40
5. Step 5: Solve for x
   x = 731,240,572.40/31,155.24
6. Step 6: Final answer
   x = 23,470.87