Finding the Fourth Proportional to 443,929.12, 612,482.60 and 271,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,929.12 : 612,482.60 = 271,667.50 : x
2. Step 2: Convert to fraction form
   443,929.12/612,482.60 = 271,667.50/x
3. Step 3: Cross multiply
   443,929.12x = 612,482.60 × 271,667.50
4. Step 4: Simplify right side
   443,929.12x = 166,391,616,735.50
5. Step 5: Solve for x
   x = 166,391,616,735.50/443,929.12
6. Step 6: Final answer
   x = 374,815.73