Finding the Fourth Proportional to 9,719.81, 13,414.52 and 5,472.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,719.81 : 13,414.52 = 5,472.47 : x
2. Step 2: Convert to fraction form
   9,719.81/13,414.52 = 5,472.47/x
3. Step 3: Cross multiply
   9,719.81x = 13,414.52 × 5,472.47
4. Step 4: Simplify right side
   9,719.81x = 73,410,504.87
5. Step 5: Solve for x
   x = 73,410,504.87/9,719.81
6. Step 6: Final answer
   x = 7,552.67