Finding the Fourth Proportional to 8,755.59, 13,138.86 and 3,561.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.59 : 13,138.86 = 3,561.47 : x
2. Step 2: Convert to fraction form
   8,755.59/13,138.86 = 3,561.47/x
3. Step 3: Cross multiply
   8,755.59x = 13,138.86 × 3,561.47
4. Step 4: Simplify right side
   8,755.59x = 46,793,632.62
5. Step 5: Solve for x
   x = 46,793,632.62/8,755.59
6. Step 6: Final answer
   x = 5,344.43