Finding the Fourth Proportional to 488,888.67, 674,667.86 and 271,112.67

Step by Step Solution

1. Step 1: Write the proportion equation
   488,888.67 : 674,667.86 = 271,112.67 : x
2. Step 2: Convert to fraction form
   488,888.67/674,667.86 = 271,112.67/x
3. Step 3: Cross multiply
   488,888.67x = 674,667.86 × 271,112.67
4. Step 4: Simplify right side
   488,888.67x = 182,911,003,532.22
5. Step 5: Solve for x
   x = 182,911,003,532.22/488,888.67
6. Step 6: Final answer
   x = 374,136.31