Finding the Fourth Proportional to 31,131.24, 42,964.76 and 17,704.51

Step by Step Solution

1. Step 1: Write the proportion equation
   31,131.24 : 42,964.76 = 17,704.51 : x
2. Step 2: Convert to fraction form
   31,131.24/42,964.76 = 17,704.51/x
3. Step 3: Cross multiply
   31,131.24x = 42,964.76 × 17,704.51
4. Step 4: Simplify right side
   31,131.24x = 760,669,959.92
5. Step 5: Solve for x
   x = 760,669,959.92/31,131.24
6. Step 6: Final answer
   x = 24,434.30