Finding the Fourth Proportional to 80,406.68, 120,610.82 and 30,473.31

Step by Step Solution

1. Step 1: Write the proportion equation
   80,406.68 : 120,610.82 = 30,473.31 : x
2. Step 2: Convert to fraction form
   80,406.68/120,610.82 = 30,473.31/x
3. Step 3: Cross multiply
   80,406.68x = 120,610.82 × 30,473.31
4. Step 4: Simplify right side
   80,406.68x = 3,675,411,435.69
5. Step 5: Solve for x
   x = 3,675,411,435.69/80,406.68
6. Step 6: Final answer
   x = 45,710.28