Finding the Fourth Proportional to 143,857.22, 198,533.78 and 83,427.37

Step by Step Solution

1. Step 1: Write the proportion equation
   143,857.22 : 198,533.78 = 83,427.37 : x
2. Step 2: Convert to fraction form
   143,857.22/198,533.78 = 83,427.37/x
3. Step 3: Cross multiply
   143,857.22x = 198,533.78 × 83,427.37
4. Step 4: Simplify right side
   143,857.22x = 16,563,150,990.22
5. Step 5: Solve for x
   x = 16,563,150,990.22/143,857.22
6. Step 6: Final answer
   x = 115,136.05