Finding the Fourth Proportional to 9,671.92, 13,346.32 and 5,480.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,671.92 : 13,346.32 = 5,480.16 : x
2. Step 2: Convert to fraction form
   9,671.92/13,346.32 = 5,480.16/x
3. Step 3: Cross multiply
   9,671.92x = 13,346.32 × 5,480.16
4. Step 4: Simplify right side
   9,671.92x = 73,139,969.01
5. Step 5: Solve for x
   x = 73,139,969.01/9,671.92
6. Step 6: Final answer
   x = 7,562.09