Finding the Fourth Proportional to 9,928.28, 13,701.72 and 6,565.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.28 : 13,701.72 = 6,565.25 : x
2. Step 2: Convert to fraction form
   9,928.28/13,701.72 = 6,565.25/x
3. Step 3: Cross multiply
   9,928.28x = 13,701.72 × 6,565.25
4. Step 4: Simplify right side
   9,928.28x = 89,955,148.72
5. Step 5: Solve for x
   x = 89,955,148.72/9,928.28
6. Step 6: Final answer
   x = 9,060.50