Finding the Fourth Proportional to 8,814.54, 12,162.78 and 5,277

Step by Step Solution

1. Step 1: Write the proportion equation
   8,814.54 : 12,162.78 = 5,277 : x
2. Step 2: Convert to fraction form
   8,814.54/12,162.78 = 5,277/x
3. Step 3: Cross multiply
   8,814.54x = 12,162.78 × 5,277
4. Step 4: Simplify right side
   8,814.54x = 64,182,990.06
5. Step 5: Solve for x
   x = 64,182,990.06/8,814.54
6. Step 6: Final answer
   x = 7,281.49