Finding the Fourth Proportional to 7,780.05, 10,736.01 and 4,243.23

Step by Step Solution

1. Step 1: Write the proportion equation
   7,780.05 : 10,736.01 = 4,243.23 : x
2. Step 2: Convert to fraction form
   7,780.05/10,736.01 = 4,243.23/x
3. Step 3: Cross multiply
   7,780.05x = 10,736.01 × 4,243.23
4. Step 4: Simplify right side
   7,780.05x = 45,555,359.71
5. Step 5: Solve for x
   x = 45,555,359.71/7,780.05
6. Step 6: Final answer
   x = 5,855.41