Finding the Fourth Proportional to 10,453.84, 14,427.20 and 5,739.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,453.84 : 14,427.20 = 5,739.04 : x
2. Step 2: Convert to fraction form
   10,453.84/14,427.20 = 5,739.04/x
3. Step 3: Cross multiply
   10,453.84x = 14,427.20 × 5,739.04
4. Step 4: Simplify right side
   10,453.84x = 82,798,277.89
5. Step 5: Solve for x
   x = 82,798,277.89/10,453.84
6. Step 6: Final answer
   x = 7,920.37