Finding the Fourth Proportional to 407,144.75, 562,150.94 and 271,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   407,144.75 : 562,150.94 = 271,498.50 : x
2. Step 2: Convert to fraction form
   407,144.75/562,150.94 = 271,498.50/x
3. Step 3: Cross multiply
   407,144.75x = 562,150.94 × 271,498.50
4. Step 4: Simplify right side
   407,144.75x = 152,623,135,626.10
5. Step 5: Solve for x
   x = 152,623,135,626.10/407,144.75
6. Step 6: Final answer
   x = 374,862.10