Finding the Fourth Proportional to 142,713.12, 196,944.30 and 79,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,713.12 : 196,944.30 = 79,050.72 : x
2. Step 2: Convert to fraction form
   142,713.12/196,944.30 = 79,050.72/x
3. Step 3: Cross multiply
   142,713.12x = 196,944.30 × 79,050.72
4. Step 4: Simplify right side
   142,713.12x = 15,568,588,714.90
5. Step 5: Solve for x
   x = 15,568,588,714.90/142,713.12
6. Step 6: Final answer
   x = 109,090.10