Finding the Fourth Proportional to 31,231.71, 43,099.79 and 17,084.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,231.71 : 43,099.79 = 17,084.57 : x
2. Step 2: Convert to fraction form
   31,231.71/43,099.79 = 17,084.57/x
3. Step 3: Cross multiply
   31,231.71x = 43,099.79 × 17,084.57
4. Step 4: Simplify right side
   31,231.71x = 736,341,078.32
5. Step 5: Solve for x
   x = 736,341,078.32/31,231.71
6. Step 6: Final answer
   x = 23,576.71