Finding the Fourth Proportional to 10,427.39, 14,389.69 and 5,647.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.39 : 14,389.69 = 5,647.26 : x
2. Step 2: Convert to fraction form
   10,427.39/14,389.69 = 5,647.26/x
3. Step 3: Cross multiply
   10,427.39x = 14,389.69 × 5,647.26
4. Step 4: Simplify right side
   10,427.39x = 81,262,220.56
5. Step 5: Solve for x
   x = 81,262,220.56/10,427.39
6. Step 6: Final answer
   x = 7,793.15