Finding the Fourth Proportional to 9,488.72, 13,095.20 and 5,240.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,488.72 : 13,095.20 = 5,240.16 : x
2. Step 2: Convert to fraction form
   9,488.72/13,095.20 = 5,240.16/x
3. Step 3: Cross multiply
   9,488.72x = 13,095.20 × 5,240.16
4. Step 4: Simplify right side
   9,488.72x = 68,620,917.03
5. Step 5: Solve for x
   x = 68,620,917.03/9,488.72
6. Step 6: Final answer
   x = 7,231.85