Finding the Fourth Proportional to 143,770.73, 198,404.39 and 83,377.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,770.73 : 198,404.39 = 83,377.18 : x
2. Step 2: Convert to fraction form
   143,770.73/198,404.39 = 83,377.18/x
3. Step 3: Cross multiply
   143,770.73x = 198,404.39 × 83,377.18
4. Step 4: Simplify right side
   143,770.73x = 16,542,397,128.91
5. Step 5: Solve for x
   x = 16,542,397,128.91/143,770.73
6. Step 6: Final answer
   x = 115,060.96