Finding the Fourth Proportional to 8,880.55, 12,259.59 and 5,524.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,880.55 : 12,259.59 = 5,524.45 : x
2. Step 2: Convert to fraction form
   8,880.55/12,259.59 = 5,524.45/x
3. Step 3: Cross multiply
   8,880.55x = 12,259.59 × 5,524.45
4. Step 4: Simplify right side
   8,880.55x = 67,727,490.63
5. Step 5: Solve for x
   x = 67,727,490.63/8,880.55
6. Step 6: Final answer
   x = 7,626.50