Finding the Fourth Proportional to 142,596.87, 214,105.56 and 79,540.19

Step by Step Solution

1. Step 1: Write the proportion equation
   142,596.87 : 214,105.56 = 79,540.19 : x
2. Step 2: Convert to fraction form
   142,596.87/214,105.56 = 79,540.19/x
3. Step 3: Cross multiply
   142,596.87x = 214,105.56 × 79,540.19
4. Step 4: Simplify right side
   142,596.87x = 17,029,996,922.46
5. Step 5: Solve for x
   x = 17,029,996,922.46/142,596.87
6. Step 6: Final answer
   x = 119,427.56