Finding the Fourth Proportional to 10,321.38, 14,243.58 and 5,605.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,321.38 : 14,243.58 = 5,605.74 : x
2. Step 2: Convert to fraction form
   10,321.38/14,243.58 = 5,605.74/x
3. Step 3: Cross multiply
   10,321.38x = 14,243.58 × 5,605.74
4. Step 4: Simplify right side
   10,321.38x = 79,845,806.15
5. Step 5: Solve for x
   x = 79,845,806.15/10,321.38
6. Step 6: Final answer
   x = 7,735.96