Finding the Fourth Proportional to 8,287.60, 11,443.80 and 5,505.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,287.60 : 11,443.80 = 5,505.52 : x
2. Step 2: Convert to fraction form
   8,287.60/11,443.80 = 5,505.52/x
3. Step 3: Cross multiply
   8,287.60x = 11,443.80 × 5,505.52
4. Step 4: Simplify right side
   8,287.60x = 63,004,069.78
5. Step 5: Solve for x
   x = 63,004,069.78/8,287.60
6. Step 6: Final answer
   x = 7,602.21