Finding the Fourth Proportional to 13,080.96, 19,626.30 and 7,229.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,080.96 : 19,626.30 = 7,229.52 : x
2. Step 2: Convert to fraction form
   13,080.96/19,626.30 = 7,229.52/x
3. Step 3: Cross multiply
   13,080.96x = 19,626.30 × 7,229.52
4. Step 4: Simplify right side
   13,080.96x = 141,888,728.38
5. Step 5: Solve for x
   x = 141,888,728.38/13,080.96
6. Step 6: Final answer
   x = 10,846.97