Finding the Fourth Proportional to 142,114.72, 196,118.94 and 78,453.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,114.72 : 196,118.94 = 78,453.04 : x
2. Step 2: Convert to fraction form
   142,114.72/196,118.94 = 78,453.04/x
3. Step 3: Cross multiply
   142,114.72x = 196,118.94 × 78,453.04
4. Step 4: Simplify right side
   142,114.72x = 15,386,127,044.58
5. Step 5: Solve for x
   x = 15,386,127,044.58/142,114.72
6. Step 6: Final answer
   x = 108,265.54