Finding the Fourth Proportional to 9,499.04, 13,109.28 and 5,521.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.04 : 13,109.28 = 5,521.04 : x
2. Step 2: Convert to fraction form
   9,499.04/13,109.28 = 5,521.04/x
3. Step 3: Cross multiply
   9,499.04x = 13,109.28 × 5,521.04
4. Step 4: Simplify right side
   9,499.04x = 72,376,859.25
5. Step 5: Solve for x
   x = 72,376,859.25/9,499.04
6. Step 6: Final answer
   x = 7,619.39