Finding the Fourth Proportional to 10,427.27, 14,389.57 and 5,647.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.27 : 14,389.57 = 5,647.11 : x
2. Step 2: Convert to fraction form
   10,427.27/14,389.57 = 5,647.11/x
3. Step 3: Cross multiply
   10,427.27x = 14,389.57 × 5,647.11
4. Step 4: Simplify right side
   10,427.27x = 81,259,420.43
5. Step 5: Solve for x
   x = 81,259,420.43/10,427.27
6. Step 6: Final answer
   x = 7,792.97