Finding the Fourth Proportional to 9,499.12, 13,112.88 and 6,530.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.12 : 13,112.88 = 6,530.28 : x
2. Step 2: Convert to fraction form
   9,499.12/13,112.88 = 6,530.28/x
3. Step 3: Cross multiply
   9,499.12x = 13,112.88 × 6,530.28
4. Step 4: Simplify right side
   9,499.12x = 85,630,778.01
5. Step 5: Solve for x
   x = 85,630,778.01/9,499.12
6. Step 6: Final answer
   x = 9,014.60