Finding the Fourth Proportional to 169,462.72, 253,884.26 and 79,340.10

Step by Step Solution

1. Step 1: Write the proportion equation
   169,462.72 : 253,884.26 = 79,340.10 : x
2. Step 2: Convert to fraction form
   169,462.72/253,884.26 = 79,340.10/x
3. Step 3: Cross multiply
   169,462.72x = 253,884.26 × 79,340.10
4. Step 4: Simplify right side
   169,462.72x = 20,143,200,910.70
5. Step 5: Solve for x
   x = 20,143,200,910.70/169,462.72
6. Step 6: Final answer
   x = 118,865.09