Finding the Fourth Proportional to 9,297.04, 12,828.72 and 5,105.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,297.04 : 12,828.72 = 5,105.20 : x
2. Step 2: Convert to fraction form
   9,297.04/12,828.72 = 5,105.20/x
3. Step 3: Cross multiply
   9,297.04x = 12,828.72 × 5,105.20
4. Step 4: Simplify right side
   9,297.04x = 65,493,181.34
5. Step 5: Solve for x
   x = 65,493,181.34/9,297.04
6. Step 6: Final answer
   x = 7,044.52