Finding the Fourth Proportional to 137,809.57, 190,206.83 and 84,083.05

Step by Step Solution

1. Step 1: Write the proportion equation
   137,809.57 : 190,206.83 = 84,083.05 : x
2. Step 2: Convert to fraction form
   137,809.57/190,206.83 = 84,083.05/x
3. Step 3: Cross multiply
   137,809.57x = 190,206.83 × 84,083.05
4. Step 4: Simplify right side
   137,809.57x = 15,993,169,976.82
5. Step 5: Solve for x
   x = 15,993,169,976.82/137,809.57
6. Step 6: Final answer
   x = 116,052.68