Finding the Fourth Proportional to 31,488.67, 43,454.78 and 17,342.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,488.67 : 43,454.78 = 17,342.56 : x
2. Step 2: Convert to fraction form
   31,488.67/43,454.78 = 17,342.56/x
3. Step 3: Cross multiply
   31,488.67x = 43,454.78 × 17,342.56
4. Step 4: Simplify right side
   31,488.67x = 753,617,129.44
5. Step 5: Solve for x
   x = 753,617,129.44/31,488.67
6. Step 6: Final answer
   x = 23,932.96