Finding the Fourth Proportional to 31,234.90, 43,105.15 and 17,087.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,234.90 : 43,105.15 = 17,087.73 : x
2. Step 2: Convert to fraction form
   31,234.90/43,105.15 = 17,087.73/x
3. Step 3: Cross multiply
   31,234.90x = 43,105.15 × 17,087.73
4. Step 4: Simplify right side
   31,234.90x = 736,569,164.81
5. Step 5: Solve for x
   x = 736,569,164.81/31,234.90
6. Step 6: Final answer
   x = 23,581.61