Finding the Fourth Proportional to 4,642.56, 6,928.56 and 4,331.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,642.56 : 6,928.56 = 4,331.52 : x
2. Step 2: Convert to fraction form
   4,642.56/6,928.56 = 4,331.52/x
3. Step 3: Cross multiply
   4,642.56x = 6,928.56 × 4,331.52
4. Step 4: Simplify right side
   4,642.56x = 30,011,196.21
5. Step 5: Solve for x
   x = 30,011,196.21/4,642.56
6. Step 6: Final answer
   x = 6,464.36