Finding the Fourth Proportional to 142,010.91, 195,975.72 and 78,348.69

Step by Step Solution

1. Step 1: Write the proportion equation
   142,010.91 : 195,975.72 = 78,348.69 : x
2. Step 2: Convert to fraction form
   142,010.91/195,975.72 = 78,348.69/x
3. Step 3: Cross multiply
   142,010.91x = 195,975.72 × 78,348.69
4. Step 4: Simplify right side
   142,010.91x = 15,354,440,933.81
5. Step 5: Solve for x
   x = 15,354,440,933.81/142,010.91
6. Step 6: Final answer
   x = 108,121.56