Finding the Fourth Proportional to 72,500.76, 108,768.42 and 30,951

Step by Step Solution

1. Step 1: Write the proportion equation
   72,500.76 : 108,768.42 = 30,951 : x
2. Step 2: Convert to fraction form
   72,500.76/108,768.42 = 30,951/x
3. Step 3: Cross multiply
   72,500.76x = 108,768.42 × 30,951
4. Step 4: Simplify right side
   72,500.76x = 3,366,491,367.42
5. Step 5: Solve for x
   x = 3,366,491,367.42/72,500.76
6. Step 6: Final answer
   x = 46,433.88