Finding the Fourth Proportional to 7,777.59, 10,729.17 and 4,940.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,777.59 : 10,729.17 = 4,940.34 : x
2. Step 2: Convert to fraction form
   7,777.59/10,729.17 = 4,940.34/x
3. Step 3: Cross multiply
   7,777.59x = 10,729.17 × 4,940.34
4. Step 4: Simplify right side
   7,777.59x = 53,005,747.72
5. Step 5: Solve for x
   x = 53,005,747.72/7,777.59
6. Step 6: Final answer
   x = 6,815.19