Finding the Fourth Proportional to 142,419.35, 196,494.30 and 94,680.78

Step by Step Solution

1. Step 1: Write the proportion equation
   142,419.35 : 196,494.30 = 94,680.78 : x
2. Step 2: Convert to fraction form
   142,419.35/196,494.30 = 94,680.78/x
3. Step 3: Cross multiply
   142,419.35x = 196,494.30 × 94,680.78
4. Step 4: Simplify right side
   142,419.35x = 18,604,233,589.55
5. Step 5: Solve for x
   x = 18,604,233,589.55/142,419.35
6. Step 6: Final answer
   x = 130,629.96