Finding the Fourth Proportional to 407,994.08, 562,870.50 and 235,880.42

Step by Step Solution

1. Step 1: Write the proportion equation
   407,994.08 : 562,870.50 = 235,880.42 : x
2. Step 2: Convert to fraction form
   407,994.08/562,870.50 = 235,880.42/x
3. Step 3: Cross multiply
   407,994.08x = 562,870.50 × 235,880.42
4. Step 4: Simplify right side
   407,994.08x = 132,770,129,945.61
5. Step 5: Solve for x
   x = 132,770,129,945.61/407,994.08
6. Step 6: Final answer
   x = 325,421.71