Finding the Fourth Proportional to 84,173.83, 126,085.78 and 39,836.05

Step by Step Solution

1. Step 1: Write the proportion equation
   84,173.83 : 126,085.78 = 39,836.05 : x
2. Step 2: Convert to fraction form
   84,173.83/126,085.78 = 39,836.05/x
3. Step 3: Cross multiply
   84,173.83x = 126,085.78 × 39,836.05
4. Step 4: Simplify right side
   84,173.83x = 5,022,759,436.37
5. Step 5: Solve for x
   x = 5,022,759,436.37/84,173.83
6. Step 6: Final answer
   x = 59,671.27