Finding the Fourth Proportional to 31,436.48, 43,382.04 and 17,289.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,436.48 : 43,382.04 = 17,289.92 : x
2. Step 2: Convert to fraction form
   31,436.48/43,382.04 = 17,289.92/x
3. Step 3: Cross multiply
   31,436.48x = 43,382.04 × 17,289.92
4. Step 4: Simplify right side
   31,436.48x = 750,072,001.04
5. Step 5: Solve for x
   x = 750,072,001.04/31,436.48
6. Step 6: Final answer
   x = 23,859.92