Finding the Fourth Proportional to 9,521.35, 13,136.28 and 5,541.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,521.35 : 13,136.28 = 5,541.62 : x
2. Step 2: Convert to fraction form
   9,521.35/13,136.28 = 5,541.62/x
3. Step 3: Cross multiply
   9,521.35x = 13,136.28 × 5,541.62
4. Step 4: Simplify right side
   9,521.35x = 72,796,271.97
5. Step 5: Solve for x
   x = 72,796,271.97/9,521.35
6. Step 6: Final answer
   x = 7,645.58