Finding the Fourth Proportional to 9,510.84, 13,131.12 and 8,514.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,510.84 : 13,131.12 = 8,514.40 : x
2. Step 2: Convert to fraction form
   9,510.84/13,131.12 = 8,514.40/x
3. Step 3: Cross multiply
   9,510.84x = 13,131.12 × 8,514.40
4. Step 4: Simplify right side
   9,510.84x = 111,803,608.13
5. Step 5: Solve for x
   x = 111,803,608.13/9,510.84
6. Step 6: Final answer
   x = 11,755.39