Finding the Fourth Proportional to 31,665.94, 43,699.30 and 17,519.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,665.94 : 43,699.30 = 17,519.09 : x
2. Step 2: Convert to fraction form
   31,665.94/43,699.30 = 17,519.09/x
3. Step 3: Cross multiply
   31,665.94x = 43,699.30 × 17,519.09
4. Step 4: Simplify right side
   31,665.94x = 765,571,707.34
5. Step 5: Solve for x
   x = 765,571,707.34/31,665.94
6. Step 6: Final answer
   x = 24,176.51