Finding the Fourth Proportional to 142,755.84, 197,016.96 and 83,136

Step by Step Solution

1. Step 1: Write the proportion equation
   142,755.84 : 197,016.96 = 83,136 : x
2. Step 2: Convert to fraction form
   142,755.84/197,016.96 = 83,136/x
3. Step 3: Cross multiply
   142,755.84x = 197,016.96 × 83,136
4. Step 4: Simplify right side
   142,755.84x = 16,379,201,986.56
5. Step 5: Solve for x
   x = 16,379,201,986.56/142,755.84
6. Step 6: Final answer
   x = 114,735.78