Finding the Fourth Proportional to 7,780.16, 10,736.67 and 4,243.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,780.16 : 10,736.67 = 4,243.43 : x
2. Step 2: Convert to fraction form
   7,780.16/10,736.67 = 4,243.43/x
3. Step 3: Cross multiply
   7,780.16x = 10,736.67 × 4,243.43
4. Step 4: Simplify right side
   7,780.16x = 45,560,253.89
5. Step 5: Solve for x
   x = 45,560,253.89/7,780.16
6. Step 6: Final answer
   x = 5,855.96