Finding the Fourth Proportional to 142,625.74, 196,836.72 and 78,963.53

Step by Step Solution

1. Step 1: Write the proportion equation
   142,625.74 : 196,836.72 = 78,963.53 : x
2. Step 2: Convert to fraction form
   142,625.74/196,836.72 = 78,963.53/x
3. Step 3: Cross multiply
   142,625.74x = 196,836.72 × 78,963.53
4. Step 4: Simplify right side
   142,625.74x = 15,542,922,958.46
5. Step 5: Solve for x
   x = 15,542,922,958.46/142,625.74
6. Step 6: Final answer
   x = 108,976.99