Finding the Fourth Proportional to 31,234.80, 43,104.42 and 17,087.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,234.80 : 43,104.42 = 17,087.88 : x
2. Step 2: Convert to fraction form
   31,234.80/43,104.42 = 17,087.88/x
3. Step 3: Cross multiply
   31,234.80x = 43,104.42 × 17,087.88
4. Step 4: Simplify right side
   31,234.80x = 736,563,156.43
5. Step 5: Solve for x
   x = 736,563,156.43/31,234.80
6. Step 6: Final answer
   x = 23,581.49