Finding the Fourth Proportional to 31,485, 43,449.36 and 17,339.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,485 : 43,449.36 = 17,339.16 : x
2. Step 2: Convert to fraction form
   31,485/43,449.36 = 17,339.16/x
3. Step 3: Cross multiply
   31,485x = 43,449.36 × 17,339.16
4. Step 4: Simplify right side
   31,485x = 753,375,404.94
5. Step 5: Solve for x
   x = 753,375,404.94/31,485
6. Step 6: Final answer
   x = 23,928.07