Finding the Fourth Proportional to 9,620.88, 13,276.61 and 5,371.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,620.88 : 13,276.61 = 5,371.82 : x
2. Step 2: Convert to fraction form
   9,620.88/13,276.61 = 5,371.82/x
3. Step 3: Cross multiply
   9,620.88x = 13,276.61 × 5,371.82
4. Step 4: Simplify right side
   9,620.88x = 71,319,535.82
5. Step 5: Solve for x
   x = 71,319,535.82/9,620.88
6. Step 6: Final answer
   x = 7,413.00