Finding the Fourth Proportional to 12,741.80, 19,105.86 and 3,973.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741.80 : 19,105.86 = 3,973.16 : x
2. Step 2: Convert to fraction form
   12,741.80/19,105.86 = 3,973.16/x
3. Step 3: Cross multiply
   12,741.80x = 19,105.86 × 3,973.16
4. Step 4: Simplify right side
   12,741.80x = 75,910,638.72
5. Step 5: Solve for x
   x = 75,910,638.72/12,741.80
6. Step 6: Final answer
   x = 5,957.61