Finding the Fourth Proportional to 9,928.72, 13,701.65 and 5,452.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.72 : 13,701.65 = 5,452.76 : x
2. Step 2: Convert to fraction form
   9,928.72/13,701.65 = 5,452.76/x
3. Step 3: Cross multiply
   9,928.72x = 13,701.65 × 5,452.76
4. Step 4: Simplify right side
   9,928.72x = 74,711,809.05
5. Step 5: Solve for x
   x = 74,711,809.05/9,928.72
6. Step 6: Final answer
   x = 7,524.82