Finding the Fourth Proportional to 142,494.42, 196,644.18 and 82,075.68

Step by Step Solution

1. Step 1: Write the proportion equation
   142,494.42 : 196,644.18 = 82,075.68 : x
2. Step 2: Convert to fraction form
   142,494.42/196,644.18 = 82,075.68/x
3. Step 3: Cross multiply
   142,494.42x = 196,644.18 × 82,075.68
4. Step 4: Simplify right side
   142,494.42x = 16,139,704,791.54
5. Step 5: Solve for x
   x = 16,139,704,791.54/142,494.42
6. Step 6: Final answer
   x = 113,265.52