Finding the Fourth Proportional to 12,565.25, 18,856.52 and 4,357.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,565.25 : 18,856.52 = 4,357.25 : x
2. Step 2: Convert to fraction form
   12,565.25/18,856.52 = 4,357.25/x
3. Step 3: Cross multiply
   12,565.25x = 18,856.52 × 4,357.25
4. Step 4: Simplify right side
   12,565.25x = 82,162,571.77
5. Step 5: Solve for x
   x = 82,162,571.77/12,565.25
6. Step 6: Final answer
   x = 6,538.87