Finding the Fourth Proportional to 142,373.05, 196,466.38 and 78,707.05

Step by Step Solution

1. Step 1: Write the proportion equation
   142,373.05 : 196,466.38 = 78,707.05 : x
2. Step 2: Convert to fraction form
   142,373.05/196,466.38 = 78,707.05/x
3. Step 3: Cross multiply
   142,373.05x = 196,466.38 × 78,707.05
4. Step 4: Simplify right side
   142,373.05x = 15,463,289,193.98
5. Step 5: Solve for x
   x = 15,463,289,193.98/142,373.05
6. Step 6: Final answer
   x = 108,611.07