Finding the Fourth Proportional to 9,928.20, 13,701.24 and 5,736.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.20 : 13,701.24 = 5,736.45 : x
2. Step 2: Convert to fraction form
   9,928.20/13,701.24 = 5,736.45/x
3. Step 3: Cross multiply
   9,928.20x = 13,701.24 × 5,736.45
4. Step 4: Simplify right side
   9,928.20x = 78,596,449.52
5. Step 5: Solve for x
   x = 78,596,449.52/9,928.20
6. Step 6: Final answer
   x = 7,916.49