Finding the Fourth Proportional to 31,536.17, 43,519.79 and 17,389.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,536.17 : 43,519.79 = 17,389.25 : x
2. Step 2: Convert to fraction form
   31,536.17/43,519.79 = 17,389.25/x
3. Step 3: Cross multiply
   31,536.17x = 43,519.79 × 17,389.25
4. Step 4: Simplify right side
   31,536.17x = 756,776,421.31
5. Step 5: Solve for x
   x = 756,776,421.31/31,536.17
6. Step 6: Final answer
   x = 23,997.09