Finding the Fourth Proportional to 143,621.00, 198,231.89 and 83,181.89

Step by Step Solution

1. Step 1: Write the proportion equation
   143,621.00 : 198,231.89 = 83,181.89 : x
2. Step 2: Convert to fraction form
   143,621.00/198,231.89 = 83,181.89/x
3. Step 3: Cross multiply
   143,621.00x = 198,231.89 × 83,181.89
4. Step 4: Simplify right side
   143,621.00x = 16,489,303,972.01
5. Step 5: Solve for x
   x = 16,489,303,972.01/143,621.00
6. Step 6: Final answer
   x = 114,811.23