Finding the Fourth Proportional to 9,571.02, 13,207.50 and 5,379

Step by Step Solution

1. Step 1: Write the proportion equation
   9,571.02 : 13,207.50 = 5,379 : x
2. Step 2: Convert to fraction form
   9,571.02/13,207.50 = 5,379/x
3. Step 3: Cross multiply
   9,571.02x = 13,207.50 × 5,379
4. Step 4: Simplify right side
   9,571.02x = 71,043,142.50
5. Step 5: Solve for x
   x = 71,043,142.50/9,571.02
6. Step 6: Final answer
   x = 7,422.73