Finding the Fourth Proportional to 9,500.09, 13,108.78 and 5,411.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,500.09 : 13,108.78 = 5,411.99 : x
2. Step 2: Convert to fraction form
   9,500.09/13,108.78 = 5,411.99/x
3. Step 3: Cross multiply
   9,500.09x = 13,108.78 × 5,411.99
4. Step 4: Simplify right side
   9,500.09x = 70,944,621.41
5. Step 5: Solve for x
   x = 70,944,621.41/9,500.09
6. Step 6: Final answer
   x = 7,467.79