Finding the Fourth Proportional to 7,774.94, 10,729.42 and 4,238.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,774.94 : 10,729.42 = 4,238.15 : x
2. Step 2: Convert to fraction form
   7,774.94/10,729.42 = 4,238.15/x
3. Step 3: Cross multiply
   7,774.94x = 10,729.42 × 4,238.15
4. Step 4: Simplify right side
   7,774.94x = 45,472,891.37
5. Step 5: Solve for x
   x = 45,472,891.37/7,774.94
6. Step 6: Final answer
   x = 5,848.65