Finding the Fourth Proportional to 142,023.42, 195,998.67 and 81,613.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,023.42 : 195,998.67 = 81,613.62 : x
2. Step 2: Convert to fraction form
   142,023.42/195,998.67 = 81,613.62/x
3. Step 3: Cross multiply
   142,023.42x = 195,998.67 × 81,613.62
4. Step 4: Simplify right side
   142,023.42x = 15,996,160,973.89
5. Step 5: Solve for x
   x = 15,996,160,973.89/142,023.42
6. Step 6: Final answer
   x = 112,630.44