Finding the Fourth Proportional to 8,264.69, 12,406.28 and 5,496.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,264.69 : 12,406.28 = 5,496.78 : x
2. Step 2: Convert to fraction form
   8,264.69/12,406.28 = 5,496.78/x
3. Step 3: Cross multiply
   8,264.69x = 12,406.28 × 5,496.78
4. Step 4: Simplify right side
   8,264.69x = 68,194,641.74
5. Step 5: Solve for x
   x = 68,194,641.74/8,264.69
6. Step 6: Final answer
   x = 8,251.33