Finding the Fourth Proportional to 143,015.56, 197,370.83 and 82,588.75

Step by Step Solution

1. Step 1: Write the proportion equation
   143,015.56 : 197,370.83 = 82,588.75 : x
2. Step 2: Convert to fraction form
   143,015.56/197,370.83 = 82,588.75/x
3. Step 3: Cross multiply
   143,015.56x = 197,370.83 × 82,588.75
4. Step 4: Simplify right side
   143,015.56x = 16,300,610,136.16
5. Step 5: Solve for x
   x = 16,300,610,136.16/143,015.56
6. Step 6: Final answer
   x = 113,977.88