Finding the Fourth Proportional to 72,453.82, 108,710.67 and 31,906.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72,453.82 : 108,710.67 = 31,906.54 : x
2. Step 2: Convert to fraction form
   72,453.82/108,710.67 = 31,906.54/x
3. Step 3: Cross multiply
   72,453.82x = 108,710.67 × 31,906.54
4. Step 4: Simplify right side
   72,453.82x = 3,468,581,340.78
5. Step 5: Solve for x
   x = 3,468,581,340.78/72,453.82
6. Step 6: Final answer
   x = 47,872.99