Finding the Fourth Proportional to 10,321.30, 14,243.16 and 5,605.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,321.30 : 14,243.16 = 5,605.48 : x
2. Step 2: Convert to fraction form
   10,321.30/14,243.16 = 5,605.48/x
3. Step 3: Cross multiply
   10,321.30x = 14,243.16 × 5,605.48
4. Step 4: Simplify right side
   10,321.30x = 79,839,748.52
5. Step 5: Solve for x
   x = 79,839,748.52/10,321.30
6. Step 6: Final answer
   x = 7,735.44