Finding the Fourth Proportional to 9,081.60, 12,533.76 and 8,908.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,081.60 : 12,533.76 = 8,908.80 : x
2. Step 2: Convert to fraction form
   9,081.60/12,533.76 = 8,908.80/x
3. Step 3: Cross multiply
   9,081.60x = 12,533.76 × 8,908.80
4. Step 4: Simplify right side
   9,081.60x = 111,660,761.09
5. Step 5: Solve for x
   x = 111,660,761.09/9,081.60
6. Step 6: Final answer
   x = 12,295.27