Finding the Fourth Proportional to 31,405.29, 43,338.81 and 17,257.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,405.29 : 43,338.81 = 17,257.83 : x
2. Step 2: Convert to fraction form
   31,405.29/43,338.81 = 17,257.83/x
3. Step 3: Cross multiply
   31,405.29x = 43,338.81 × 17,257.83
4. Step 4: Simplify right side
   31,405.29x = 747,933,815.38
5. Step 5: Solve for x
   x = 747,933,815.38/31,405.29
6. Step 6: Final answer
   x = 23,815.54