Finding the Fourth Proportional to 12,741.69, 19,111.86 and 3,975.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741.69 : 19,111.86 = 3,975.96 : x
2. Step 2: Convert to fraction form
   12,741.69/19,111.86 = 3,975.96/x
3. Step 3: Cross multiply
   12,741.69x = 19,111.86 × 3,975.96
4. Step 4: Simplify right side
   12,741.69x = 75,987,990.89
5. Step 5: Solve for x
   x = 75,987,990.89/12,741.69
6. Step 6: Final answer
   x = 5,963.73