Finding the Fourth Proportional to 9,613.44, 13,152.42 and 9,571.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,613.44 : 13,152.42 = 9,571.91 : x
2. Step 2: Convert to fraction form
   9,613.44/13,152.42 = 9,571.91/x
3. Step 3: Cross multiply
   9,613.44x = 13,152.42 × 9,571.91
4. Step 4: Simplify right side
   9,613.44x = 125,893,714.76
5. Step 5: Solve for x
   x = 125,893,714.76/9,613.44
6. Step 6: Final answer
   x = 13,095.59