Finding the Fourth Proportional to 9,560.86, 13,188.67 and 8,884.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,560.86 : 13,188.67 = 8,884.31 : x
2. Step 2: Convert to fraction form
   9,560.86/13,188.67 = 8,884.31/x
3. Step 3: Cross multiply
   9,560.86x = 13,188.67 × 8,884.31
4. Step 4: Simplify right side
   9,560.86x = 117,172,210.56
5. Step 5: Solve for x
   x = 117,172,210.56/9,560.86
6. Step 6: Final answer
   x = 12,255.41