Finding the Fourth Proportional to 31,404.81, 43,339.35 and 17,257.65

Step by Step Solution

1. Step 1: Write the proportion equation
   31,404.81 : 43,339.35 = 17,257.65 : x
2. Step 2: Convert to fraction form
   31,404.81/43,339.35 = 17,257.65/x
3. Step 3: Cross multiply
   31,404.81x = 43,339.35 × 17,257.65
4. Step 4: Simplify right side
   31,404.81x = 747,935,333.53
5. Step 5: Solve for x
   x = 747,935,333.53/31,404.81
6. Step 6: Final answer
   x = 23,815.95