Finding the Fourth Proportional to 142,613.80, 213,613.17 and 134,229.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,613.80 : 213,613.17 = 134,229.59 : x
2. Step 2: Convert to fraction form
   142,613.80/213,613.17 = 134,229.59/x
3. Step 3: Cross multiply
   142,613.80x = 213,613.17 × 134,229.59
4. Step 4: Simplify right side
   142,613.80x = 28,673,207,457.32
5. Step 5: Solve for x
   x = 28,673,207,457.32/142,613.80
6. Step 6: Final answer
   x = 201,054.93