Finding the Fourth Proportional to 9,432.72, 13,016.88 and 5,455.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,432.72 : 13,016.88 = 5,455.08 : x
2. Step 2: Convert to fraction form
   9,432.72/13,016.88 = 5,455.08/x
3. Step 3: Cross multiply
   9,432.72x = 13,016.88 × 5,455.08
4. Step 4: Simplify right side
   9,432.72x = 71,008,121.75
5. Step 5: Solve for x
   x = 71,008,121.75/9,432.72
6. Step 6: Final answer
   x = 7,527.85