Finding the Fourth Proportional to 12,743.82, 19,118.12 and 5,723.66

Step by Step Solution

1. Step 1: Write the proportion equation
   12,743.82 : 19,118.12 = 5,723.66 : x
2. Step 2: Convert to fraction form
   12,743.82/19,118.12 = 5,723.66/x
3. Step 3: Cross multiply
   12,743.82x = 19,118.12 × 5,723.66
4. Step 4: Simplify right side
   12,743.82x = 109,425,618.72
5. Step 5: Solve for x
   x = 109,425,618.72/12,743.82
6. Step 6: Final answer
   x = 8,586.56