Finding the Fourth Proportional to 142,377.93, 196,464.23 and 78,706.89

Step by Step Solution

1. Step 1: Write the proportion equation
   142,377.93 : 196,464.23 = 78,706.89 : x
2. Step 2: Convert to fraction form
   142,377.93/196,464.23 = 78,706.89/x
3. Step 3: Cross multiply
   142,377.93x = 196,464.23 × 78,706.89
4. Step 4: Simplify right side
   142,377.93x = 15,463,088,146.01
5. Step 5: Solve for x
   x = 15,463,088,146.01/142,377.93
6. Step 6: Final answer
   x = 108,605.93