Finding the Fourth Proportional to 151,105.77, 208,524.81 and 83,121.28

Step by Step Solution

1. Step 1: Write the proportion equation
   151,105.77 : 208,524.81 = 83,121.28 : x
2. Step 2: Convert to fraction form
   151,105.77/208,524.81 = 83,121.28/x
3. Step 3: Cross multiply
   151,105.77x = 208,524.81 × 83,121.28
4. Step 4: Simplify right side
   151,105.77x = 17,332,849,118.96
5. Step 5: Solve for x
   x = 17,332,849,118.96/151,105.77
6. Step 6: Final answer
   x = 114,706.73