Finding the Fourth Proportional to 142,572.53, 196,747.71 and 78,908.96

Step by Step Solution

1. Step 1: Write the proportion equation
   142,572.53 : 196,747.71 = 78,908.96 : x
2. Step 2: Convert to fraction form
   142,572.53/196,747.71 = 78,908.96/x
3. Step 3: Cross multiply
   142,572.53x = 196,747.71 × 78,908.96
4. Step 4: Simplify right side
   142,572.53x = 15,525,157,178.48
5. Step 5: Solve for x
   x = 15,525,157,178.48/142,572.53
6. Step 6: Final answer
   x = 108,893.05