Finding the Fourth Proportional to 142,304.05, 196,380.20 and 77,774.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,304.05 : 196,380.20 = 77,774.59 : x
2. Step 2: Convert to fraction form
   142,304.05/196,380.20 = 77,774.59/x
3. Step 3: Cross multiply
   142,304.05x = 196,380.20 × 77,774.59
4. Step 4: Simplify right side
   142,304.05x = 15,273,388,168.34
5. Step 5: Solve for x
   x = 15,273,388,168.34/142,304.05
6. Step 6: Final answer
   x = 107,329.26