Finding the Fourth Proportional to 126,404.48, 174,445.68 and 72,695.42

Step by Step Solution

1. Step 1: Write the proportion equation
   126,404.48 : 174,445.68 = 72,695.42 : x
2. Step 2: Convert to fraction form
   126,404.48/174,445.68 = 72,695.42/x
3. Step 3: Cross multiply
   126,404.48x = 174,445.68 × 72,695.42
4. Step 4: Simplify right side
   126,404.48x = 12,681,401,974.79
5. Step 5: Solve for x
   x = 12,681,401,974.79/126,404.48
6. Step 6: Final answer
   x = 100,323.99