Finding the Fourth Proportional to 79,401.20, 119,004.60 and 34,980.80

Step by Step Solution

1. Step 1: Write the proportion equation
   79,401.20 : 119,004.60 = 34,980.80 : x
2. Step 2: Convert to fraction form
   79,401.20/119,004.60 = 34,980.80/x
3. Step 3: Cross multiply
   79,401.20x = 119,004.60 × 34,980.80
4. Step 4: Simplify right side
   79,401.20x = 4,162,876,111.68
5. Step 5: Solve for x
   x = 4,162,876,111.68/79,401.20
6. Step 6: Final answer
   x = 52,428.38