Finding the Fourth Proportional to 10,391.07, 14,351.58 and 7,571.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,391.07 : 14,351.58 = 7,571.10 : x
2. Step 2: Convert to fraction form
   10,391.07/14,351.58 = 7,571.10/x
3. Step 3: Cross multiply
   10,391.07x = 14,351.58 × 7,571.10
4. Step 4: Simplify right side
   10,391.07x = 108,657,247.34
5. Step 5: Solve for x
   x = 108,657,247.34/10,391.07
6. Step 6: Final answer
   x = 10,456.79