Finding the Fourth Proportional to 8,751.12, 12,076.56 and 5,166.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,751.12 : 12,076.56 = 5,166.24 : x
2. Step 2: Convert to fraction form
   8,751.12/12,076.56 = 5,166.24/x
3. Step 3: Cross multiply
   8,751.12x = 12,076.56 × 5,166.24
4. Step 4: Simplify right side
   8,751.12x = 62,390,407.33
5. Step 5: Solve for x
   x = 62,390,407.33/8,751.12
6. Step 6: Final answer
   x = 7,129.42