Finding the Fourth Proportional to 12,847.89, 19,271.78 and 4,083.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,847.89 : 19,271.78 = 4,083.48 : x
2. Step 2: Convert to fraction form
   12,847.89/19,271.78 = 4,083.48/x
3. Step 3: Cross multiply
   12,847.89x = 19,271.78 × 4,083.48
4. Step 4: Simplify right side
   12,847.89x = 78,695,907.78
5. Step 5: Solve for x
   x = 78,695,907.78/12,847.89
6. Step 6: Final answer
   x = 6,125.20