Finding the Fourth Proportional to 31,258.69, 43,137.02 and 17,111.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,258.69 : 43,137.02 = 17,111.57 : x
2. Step 2: Convert to fraction form
   31,258.69/43,137.02 = 17,111.57/x
3. Step 3: Cross multiply
   31,258.69x = 43,137.02 × 17,111.57
4. Step 4: Simplify right side
   31,258.69x = 738,141,964.42
5. Step 5: Solve for x
   x = 738,141,964.42/31,258.69
6. Step 6: Final answer
   x = 23,613.98