Finding the Fourth Proportional to 7,780.24, 10,736.71 and 4,243.47

Step by Step Solution

1. Step 1: Write the proportion equation
   7,780.24 : 10,736.71 = 4,243.47 : x
2. Step 2: Convert to fraction form
   7,780.24/10,736.71 = 4,243.47/x
3. Step 3: Cross multiply
   7,780.24x = 10,736.71 × 4,243.47
4. Step 4: Simplify right side
   7,780.24x = 45,560,906.78
5. Step 5: Solve for x
   x = 45,560,906.78/7,780.24
6. Step 6: Final answer
   x = 5,855.98