Finding the Fourth Proportional to 143,768.56, 198,401.42 and 83,375.06

Step by Step Solution

1. Step 1: Write the proportion equation
   143,768.56 : 198,401.42 = 83,375.06 : x
2. Step 2: Convert to fraction form
   143,768.56/198,401.42 = 83,375.06/x
3. Step 3: Cross multiply
   143,768.56x = 198,401.42 × 83,375.06
4. Step 4: Simplify right side
   143,768.56x = 16,541,730,296.59
5. Step 5: Solve for x
   x = 16,541,730,296.59/143,768.56
6. Step 6: Final answer
   x = 115,058.05