Finding the Fourth Proportional to 142,814.52, 197,085.78 and 79,153.38

Step by Step Solution

1. Step 1: Write the proportion equation
   142,814.52 : 197,085.78 = 79,153.38 : x
2. Step 2: Convert to fraction form
   142,814.52/197,085.78 = 79,153.38/x
3. Step 3: Cross multiply
   142,814.52x = 197,085.78 × 79,153.38
4. Step 4: Simplify right side
   142,814.52x = 15,600,005,636.94
5. Step 5: Solve for x
   x = 15,600,005,636.94/142,814.52
6. Step 6: Final answer
   x = 109,232.63