Finding the Fourth Proportional to 142,974.89, 197,329.01 and 79,333.19

Step by Step Solution

1. Step 1: Write the proportion equation
   142,974.89 : 197,329.01 = 79,333.19 : x
2. Step 2: Convert to fraction form
   142,974.89/197,329.01 = 79,333.19/x
3. Step 3: Cross multiply
   142,974.89x = 197,329.01 × 79,333.19
4. Step 4: Simplify right side
   142,974.89x = 15,654,739,939.50
5. Step 5: Solve for x
   x = 15,654,739,939.50/142,974.89
6. Step 6: Final answer
   x = 109,492.93