Finding the Fourth Proportional to 9,928.43, 13,700.70 and 5,452.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.43 : 13,700.70 = 5,452.79 : x
2. Step 2: Convert to fraction form
   9,928.43/13,700.70 = 5,452.79/x
3. Step 3: Cross multiply
   9,928.43x = 13,700.70 × 5,452.79
4. Step 4: Simplify right side
   9,928.43x = 74,707,039.95
5. Step 5: Solve for x
   x = 74,707,039.95/9,928.43
6. Step 6: Final answer
   x = 7,524.56