Finding the Fourth Proportional to 31,929.69, 43,743.92 and 30,732.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,929.69 : 43,743.92 = 30,732.58 : x
2. Step 2: Convert to fraction form
   31,929.69/43,743.92 = 30,732.58/x
3. Step 3: Cross multiply
   31,929.69x = 43,743.92 × 30,732.58
4. Step 4: Simplify right side
   31,929.69x = 1,344,363,421.93
5. Step 5: Solve for x
   x = 1,344,363,421.93/31,929.69
6. Step 6: Final answer
   x = 42,103.86