Finding the Fourth Proportional to 142,664.52, 196,874.42 and 79,002.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,664.52 : 196,874.42 = 79,002.12 : x
2. Step 2: Convert to fraction form
   142,664.52/196,874.42 = 79,002.12/x
3. Step 3: Cross multiply
   142,664.52x = 196,874.42 × 79,002.12
4. Step 4: Simplify right side
   142,664.52x = 15,553,496,553.77
5. Step 5: Solve for x
   x = 15,553,496,553.77/142,664.52
6. Step 6: Final answer
   x = 109,021.48