Finding the Fourth Proportional to 84,443.91, 126,683.94 and 31,136.05

Step by Step Solution

1. Step 1: Write the proportion equation
   84,443.91 : 126,683.94 = 31,136.05 : x
2. Step 2: Convert to fraction form
   84,443.91/126,683.94 = 31,136.05/x
3. Step 3: Cross multiply
   84,443.91x = 126,683.94 × 31,136.05
4. Step 4: Simplify right side
   84,443.91x = 3,944,436,932.15
5. Step 5: Solve for x
   x = 3,944,436,932.15/84,443.91
6. Step 6: Final answer
   x = 46,710.73