Finding the Fourth Proportional to 142,011.02, 195,976.25 and 78,351.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,011.02 : 195,976.25 = 78,351.10 : x
2. Step 2: Convert to fraction form
   142,011.02/195,976.25 = 78,351.10/x
3. Step 3: Cross multiply
   142,011.02x = 195,976.25 × 78,351.10
4. Step 4: Simplify right side
   142,011.02x = 15,354,954,761.38
5. Step 5: Solve for x
   x = 15,354,954,761.38/142,011.02
6. Step 6: Final answer
   x = 108,125.09