Finding the Fourth Proportional to 142,369.93, 196,453.24 and 78,698.89

Step by Step Solution

1. Step 1: Write the proportion equation
   142,369.93 : 196,453.24 = 78,698.89 : x
2. Step 2: Convert to fraction form
   142,369.93/196,453.24 = 78,698.89/x
3. Step 3: Cross multiply
   142,369.93x = 196,453.24 × 78,698.89
4. Step 4: Simplify right side
   142,369.93x = 15,460,651,924.90
5. Step 5: Solve for x
   x = 15,460,651,924.90/142,369.93
6. Step 6: Final answer
   x = 108,594.93