Finding the Fourth Proportional to 143,406.57, 197,901.23 and 79,743

Step by Step Solution

1. Step 1: Write the proportion equation
   143,406.57 : 197,901.23 = 79,743 : x
2. Step 2: Convert to fraction form
   143,406.57/197,901.23 = 79,743/x
3. Step 3: Cross multiply
   143,406.57x = 197,901.23 × 79,743
4. Step 4: Simplify right side
   143,406.57x = 15,781,237,783.89
5. Step 5: Solve for x
   x = 15,781,237,783.89/143,406.57
6. Step 6: Final answer
   x = 110,045.43