Finding the Fourth Proportional to 19,679.82, 27,157.17 and 10,727.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,679.82 : 27,157.17 = 10,727.31 : x
2. Step 2: Convert to fraction form
   19,679.82/27,157.17 = 10,727.31/x
3. Step 3: Cross multiply
   19,679.82x = 27,157.17 × 10,727.31
4. Step 4: Simplify right side
   19,679.82x = 291,323,381.31
5. Step 5: Solve for x
   x = 291,323,381.31/19,679.82
6. Step 6: Final answer
   x = 14,803.15