Finding the Fourth Proportional to 143,017.49, 197,373.57 and 82,590.68

Step by Step Solution

1. Step 1: Write the proportion equation
   143,017.49 : 197,373.57 = 82,590.68 : x
2. Step 2: Convert to fraction form
   143,017.49/197,373.57 = 82,590.68/x
3. Step 3: Cross multiply
   143,017.49x = 197,373.57 × 82,590.68
4. Step 4: Simplify right side
   143,017.49x = 16,301,217,360.33
5. Step 5: Solve for x
   x = 16,301,217,360.33/143,017.49
6. Step 6: Final answer
   x = 113,980.59