Finding the Fourth Proportional to 31,673.47, 43,710.56 and 20,495.47

Step by Step Solution

1. Step 1: Write the proportion equation
   31,673.47 : 43,710.56 = 20,495.47 : x
2. Step 2: Convert to fraction form
   31,673.47/43,710.56 = 20,495.47/x
3. Step 3: Cross multiply
   31,673.47x = 43,710.56 × 20,495.47
4. Step 4: Simplify right side
   31,673.47x = 895,868,368.69
5. Step 5: Solve for x
   x = 895,868,368.69/31,673.47
6. Step 6: Final answer
   x = 28,284.50