Finding the Fourth Proportional to 31,231.88, 43,100.88 and 17,085.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,231.88 : 43,100.88 = 17,085.62 : x
2. Step 2: Convert to fraction form
   31,231.88/43,100.88 = 17,085.62/x
3. Step 3: Cross multiply
   31,231.88x = 43,100.88 × 17,085.62
4. Step 4: Simplify right side
   31,231.88x = 736,405,257.35
5. Step 5: Solve for x
   x = 736,405,257.35/31,231.88
6. Step 6: Final answer
   x = 23,578.64