Finding the Fourth Proportional to 9,672.05, 13,346.52 and 5,480.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,672.05 : 13,346.52 = 5,480.30 : x
2. Step 2: Convert to fraction form
   9,672.05/13,346.52 = 5,480.30/x
3. Step 3: Cross multiply
   9,672.05x = 13,346.52 × 5,480.30
4. Step 4: Simplify right side
   9,672.05x = 73,142,933.56
5. Step 5: Solve for x
   x = 73,142,933.56/9,672.05
6. Step 6: Final answer
   x = 7,562.30