Finding the Fourth Proportional to 142,479, 196,604.01 and 78,808.14

Step by Step Solution

1. Step 1: Write the proportion equation
   142,479 : 196,604.01 = 78,808.14 : x
2. Step 2: Convert to fraction form
   142,479/196,604.01 = 78,808.14/x
3. Step 3: Cross multiply
   142,479x = 196,604.01 × 78,808.14
4. Step 4: Simplify right side
   142,479x = 15,493,996,344.64
5. Step 5: Solve for x
   x = 15,493,996,344.64/142,479
6. Step 6: Final answer
   x = 108,745.82