Finding the Fourth Proportional to 9,928.08, 13,701.56 and 5,452.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.08 : 13,701.56 = 5,452.72 : x
2. Step 2: Convert to fraction form
   9,928.08/13,701.56 = 5,452.72/x
3. Step 3: Cross multiply
   9,928.08x = 13,701.56 × 5,452.72
4. Step 4: Simplify right side
   9,928.08x = 74,710,770.24
5. Step 5: Solve for x
   x = 74,710,770.24/9,928.08
6. Step 6: Final answer
   x = 7,525.20