Finding the Fourth Proportional to 143,165.46, 197,568.72 and 79,503.30

Step by Step Solution

1. Step 1: Write the proportion equation
   143,165.46 : 197,568.72 = 79,503.30 : x
2. Step 2: Convert to fraction form
   143,165.46/197,568.72 = 79,503.30/x
3. Step 3: Cross multiply
   143,165.46x = 197,568.72 × 79,503.30
4. Step 4: Simplify right side
   143,165.46x = 15,707,365,216.78
5. Step 5: Solve for x
   x = 15,707,365,216.78/143,165.46
6. Step 6: Final answer
   x = 109,714.77