Finding the Fourth Proportional to 9,521.24, 13,136.82 and 5,487.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,521.24 : 13,136.82 = 5,487.08 : x
2. Step 2: Convert to fraction form
   9,521.24/13,136.82 = 5,487.08/x
3. Step 3: Cross multiply
   9,521.24x = 13,136.82 × 5,487.08
4. Step 4: Simplify right side
   9,521.24x = 72,082,782.29
5. Step 5: Solve for x
   x = 72,082,782.29/9,521.24
6. Step 6: Final answer
   x = 7,570.73