Finding the Fourth Proportional to 72,649.77, 108,974.01 and 43,046.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,649.77 : 108,974.01 = 43,046.31 : x
2. Step 2: Convert to fraction form
   72,649.77/108,974.01 = 43,046.31/x
3. Step 3: Cross multiply
   72,649.77x = 108,974.01 × 43,046.31
4. Step 4: Simplify right side
   72,649.77x = 4,690,929,016.40
5. Step 5: Solve for x
   x = 4,690,929,016.40/72,649.77
6. Step 6: Final answer
   x = 64,569.08