Finding the Fourth Proportional to 142,743.82, 196,978.71 and 79,077.82

Step by Step Solution

1. Step 1: Write the proportion equation
   142,743.82 : 196,978.71 = 79,077.82 : x
2. Step 2: Convert to fraction form
   142,743.82/196,978.71 = 79,077.82/x
3. Step 3: Cross multiply
   142,743.82x = 196,978.71 × 79,077.82
4. Step 4: Simplify right side
   142,743.82x = 15,576,646,777.31
5. Step 5: Solve for x
   x = 15,576,646,777.31/142,743.82
6. Step 6: Final answer
   x = 109,123.09