Finding the Fourth Proportional to 143,013.57, 197,358.72 and 79,351.83

Step by Step Solution

1. Step 1: Write the proportion equation
   143,013.57 : 197,358.72 = 79,351.83 : x
2. Step 2: Convert to fraction form
   143,013.57/197,358.72 = 79,351.83/x
3. Step 3: Cross multiply
   143,013.57x = 197,358.72 × 79,351.83
4. Step 4: Simplify right side
   143,013.57x = 15,660,775,598.46
5. Step 5: Solve for x
   x = 15,660,775,598.46/143,013.57
6. Step 6: Final answer
   x = 109,505.52