Finding the Fourth Proportional to 143,103, 197,472.25 and 79,435.79

Step by Step Solution

1. Step 1: Write the proportion equation
   143,103 : 197,472.25 = 79,435.79 : x
2. Step 2: Convert to fraction form
   143,103/197,472.25 = 79,435.79/x
3. Step 3: Cross multiply
   143,103x = 197,472.25 × 79,435.79
4. Step 4: Simplify right side
   143,103x = 15,686,362,797.29
5. Step 5: Solve for x
   x = 15,686,362,797.29/143,103
6. Step 6: Final answer
   x = 109,615.89