Finding the Fourth Proportional to 136,405.97, 188,249.69 and 82,693.25

Step by Step Solution

1. Step 1: Write the proportion equation
   136,405.97 : 188,249.69 = 82,693.25 : x
2. Step 2: Convert to fraction form
   136,405.97/188,249.69 = 82,693.25/x
3. Step 3: Cross multiply
   136,405.97x = 188,249.69 × 82,693.25
4. Step 4: Simplify right side
   136,405.97x = 15,566,978,677.59
5. Step 5: Solve for x
   x = 15,566,978,677.59/136,405.97
6. Step 6: Final answer
   x = 114,122.41