Finding the Fourth Proportional to 142,554.05, 213,830.89 and 65,609.31

Step by Step Solution

1. Step 1: Write the proportion equation
   142,554.05 : 213,830.89 = 65,609.31 : x
2. Step 2: Convert to fraction form
   142,554.05/213,830.89 = 65,609.31/x
3. Step 3: Cross multiply
   142,554.05x = 213,830.89 × 65,609.31
4. Step 4: Simplify right side
   142,554.05x = 14,029,297,149.59
5. Step 5: Solve for x
   x = 14,029,297,149.59/142,554.05
6. Step 6: Final answer
   x = 98,413.88