Finding the Fourth Proportional to 143,081.55, 197,461.50 and 79,420.41

Step by Step Solution

1. Step 1: Write the proportion equation
   143,081.55 : 197,461.50 = 79,420.41 : x
2. Step 2: Convert to fraction form
   143,081.55/197,461.50 = 79,420.41/x
3. Step 3: Cross multiply
   143,081.55x = 197,461.50 × 79,420.41
4. Step 4: Simplify right side
   143,081.55x = 15,682,473,289.22
5. Step 5: Solve for x
   x = 15,682,473,289.22/143,081.55
6. Step 6: Final answer
   x = 109,605.14