Finding the Fourth Proportional to 126,169.08, 174,105.34 and 72,416.24

Step by Step Solution

1. Step 1: Write the proportion equation
   126,169.08 : 174,105.34 = 72,416.24 : x
2. Step 2: Convert to fraction form
   126,169.08/174,105.34 = 72,416.24/x
3. Step 3: Cross multiply
   126,169.08x = 174,105.34 × 72,416.24
4. Step 4: Simplify right side
   126,169.08x = 12,608,054,086.72
5. Step 5: Solve for x
   x = 12,608,054,086.72/126,169.08
6. Step 6: Final answer
   x = 99,929.83