Finding the Fourth Proportional to 8,775.02, 12,109.55 and 5,238.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,775.02 : 12,109.55 = 5,238.15 : x
2. Step 2: Convert to fraction form
   8,775.02/12,109.55 = 5,238.15/x
3. Step 3: Cross multiply
   8,775.02x = 12,109.55 × 5,238.15
4. Step 4: Simplify right side
   8,775.02x = 63,431,613.14
5. Step 5: Solve for x
   x = 63,431,613.14/8,775.02
6. Step 6: Final answer
   x = 7,228.66