Finding the Fourth Proportional to 10,321.80, 14,243.85 and 5,605.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,321.80 : 14,243.85 = 5,605.98 : x
2. Step 2: Convert to fraction form
   10,321.80/14,243.85 = 5,605.98/x
3. Step 3: Cross multiply
   10,321.80x = 14,243.85 × 5,605.98
4. Step 4: Simplify right side
   10,321.80x = 79,850,738.22
5. Step 5: Solve for x
   x = 79,850,738.22/10,321.80
6. Step 6: Final answer
   x = 7,736.13