Finding the Fourth Proportional to 142,974.88, 197,328.96 and 79,333.18

Step by Step Solution

1. Step 1: Write the proportion equation
   142,974.88 : 197,328.96 = 79,333.18 : x
2. Step 2: Convert to fraction form
   142,974.88/197,328.96 = 79,333.18/x
3. Step 3: Cross multiply
   142,974.88x = 197,328.96 × 79,333.18
4. Step 4: Simplify right side
   142,974.88x = 15,654,733,902.89
5. Step 5: Solve for x
   x = 15,654,733,902.89/142,974.88
6. Step 6: Final answer
   x = 109,492.90