Finding the Fourth Proportional to 18,641.82, 27,964.10 and 5,314.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,641.82 : 27,964.10 = 5,314.56 : x
2. Step 2: Convert to fraction form
   18,641.82/27,964.10 = 5,314.56/x
3. Step 3: Cross multiply
   18,641.82x = 27,964.10 × 5,314.56
4. Step 4: Simplify right side
   18,641.82x = 148,616,860.72
5. Step 5: Solve for x
   x = 148,616,860.72/18,641.82
6. Step 6: Final answer
   x = 7,972.23