Finding the Fourth Proportional to 12,984.51, 19,478.64 and 4,096.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,984.51 : 19,478.64 = 4,096.82 : x
2. Step 2: Convert to fraction form
   12,984.51/19,478.64 = 4,096.82/x
3. Step 3: Cross multiply
   12,984.51x = 19,478.64 × 4,096.82
4. Step 4: Simplify right side
   12,984.51x = 79,800,413.37
5. Step 5: Solve for x
   x = 79,800,413.37/12,984.51
6. Step 6: Final answer
   x = 6,145.82