Finding the Fourth Proportional to 142,544.79, 196,709.31 and 82,115.25

Step by Step Solution

1. Step 1: Write the proportion equation
   142,544.79 : 196,709.31 = 82,115.25 : x
2. Step 2: Convert to fraction form
   142,544.79/196,709.31 = 82,115.25/x
3. Step 3: Cross multiply
   142,544.79x = 196,709.31 × 82,115.25
4. Step 4: Simplify right side
   142,544.79x = 16,152,834,167.98
5. Step 5: Solve for x
   x = 16,152,834,167.98/142,544.79
6. Step 6: Final answer
   x = 113,317.60