Finding the Fourth Proportional to 31,707.19, 43,760.59 and 18,275.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,707.19 : 43,760.59 = 18,275.82 : x
2. Step 2: Convert to fraction form
   31,707.19/43,760.59 = 18,275.82/x
3. Step 3: Cross multiply
   31,707.19x = 43,760.59 × 18,275.82
4. Step 4: Simplify right side
   31,707.19x = 799,760,574.55
5. Step 5: Solve for x
   x = 799,760,574.55/31,707.19
6. Step 6: Final answer
   x = 25,223.32