Finding the Fourth Proportional to 9,719.82, 13,413.06 and 5,471.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,719.82 : 13,413.06 = 5,471.12 : x
2. Step 2: Convert to fraction form
   9,719.82/13,413.06 = 5,471.12/x
3. Step 3: Cross multiply
   9,719.82x = 13,413.06 × 5,471.12
4. Step 4: Simplify right side
   9,719.82x = 73,384,494.36
5. Step 5: Solve for x
   x = 73,384,494.36/9,719.82
6. Step 6: Final answer
   x = 7,549.98