Finding the Fourth Proportional to 143,607.12, 198,196.32 and 82,377.12

Step by Step Solution

1. Step 1: Write the proportion equation
   143,607.12 : 198,196.32 = 82,377.12 : x
2. Step 2: Convert to fraction form
   143,607.12/198,196.32 = 82,377.12/x
3. Step 3: Cross multiply
   143,607.12x = 198,196.32 × 82,377.12
4. Step 4: Simplify right side
   143,607.12x = 16,326,842,036.20
5. Step 5: Solve for x
   x = 16,326,842,036.20/143,607.12
6. Step 6: Final answer
   x = 113,691.03