Finding the Fourth Proportional to 31,405.41, 43,338.61 and 17,258.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,405.41 : 43,338.61 = 17,258.25 : x
2. Step 2: Convert to fraction form
   31,405.41/43,338.61 = 17,258.25/x
3. Step 3: Cross multiply
   31,405.41x = 43,338.61 × 17,258.25
4. Step 4: Simplify right side
   31,405.41x = 747,948,566.03
5. Step 5: Solve for x
   x = 747,948,566.03/31,405.41
6. Step 6: Final answer
   x = 23,815.91