Finding the Fourth Proportional to 31,789.99, 43,875.44 and 17,647.39

Step by Step Solution

1. Step 1: Write the proportion equation
   31,789.99 : 43,875.44 = 17,647.39 : x
2. Step 2: Convert to fraction form
   31,789.99/43,875.44 = 17,647.39/x
3. Step 3: Cross multiply
   31,789.99x = 43,875.44 × 17,647.39
4. Step 4: Simplify right side
   31,789.99x = 774,287,001.10
5. Step 5: Solve for x
   x = 774,287,001.10/31,789.99
6. Step 6: Final answer
   x = 24,356.31