Finding the Fourth Proportional to 14,317.56, 21,328.72 and 13,882.29

Step by Step Solution

1. Step 1: Write the proportion equation
   14,317.56 : 21,328.72 = 13,882.29 : x
2. Step 2: Convert to fraction form
   14,317.56/21,328.72 = 13,882.29/x
3. Step 3: Cross multiply
   14,317.56x = 21,328.72 × 13,882.29
4. Step 4: Simplify right side
   14,317.56x = 296,091,361.68
5. Step 5: Solve for x
   x = 296,091,361.68/14,317.56
6. Step 6: Final answer
   x = 20,680.29