Finding the Fourth Proportional to 31,720.69, 43,775.94 and 17,573.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,720.69 : 43,775.94 = 17,573.50 : x
2. Step 2: Convert to fraction form
   31,720.69/43,775.94 = 17,573.50/x
3. Step 3: Cross multiply
   31,720.69x = 43,775.94 × 17,573.50
4. Step 4: Simplify right side
   31,720.69x = 769,296,481.59
5. Step 5: Solve for x
   x = 769,296,481.59/31,720.69
6. Step 6: Final answer
   x = 24,252.20