Finding the Fourth Proportional to 143,098.59, 197,485.25 and 82,671.78

Step by Step Solution

1. Step 1: Write the proportion equation
   143,098.59 : 197,485.25 = 82,671.78 : x
2. Step 2: Convert to fraction form
   143,098.59/197,485.25 = 82,671.78/x
3. Step 3: Cross multiply
   143,098.59x = 197,485.25 × 82,671.78
4. Step 4: Simplify right side
   143,098.59x = 16,326,457,141.25
5. Step 5: Solve for x
   x = 16,326,457,141.25/143,098.59
6. Step 6: Final answer
   x = 114,092.37