Finding the Fourth Proportional to 140,805.41, 211,144.95 and 83,906.15

Step by Step Solution

1. Step 1: Write the proportion equation
   140,805.41 : 211,144.95 = 83,906.15 : x
2. Step 2: Convert to fraction form
   140,805.41/211,144.95 = 83,906.15/x
3. Step 3: Cross multiply
   140,805.41x = 211,144.95 × 83,906.15
4. Step 4: Simplify right side
   140,805.41x = 17,716,358,790.72
5. Step 5: Solve for x
   x = 17,716,358,790.72/140,805.41
6. Step 6: Final answer
   x = 125,821.58