Finding the Fourth Proportional to 9,532.63, 13,127.83 and 8,580.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,532.63 : 13,127.83 = 8,580.31 : x
2. Step 2: Convert to fraction form
   9,532.63/13,127.83 = 8,580.31/x
3. Step 3: Cross multiply
   9,532.63x = 13,127.83 × 8,580.31
4. Step 4: Simplify right side
   9,532.63x = 112,640,851.03
5. Step 5: Solve for x
   x = 112,640,851.03/9,532.63
6. Step 6: Final answer
   x = 11,816.35