Finding the Fourth Proportional to 9,671.56, 13,346.73 and 5,479.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,671.56 : 13,346.73 = 5,479.81 : x
2. Step 2: Convert to fraction form
   9,671.56/13,346.73 = 5,479.81/x
3. Step 3: Cross multiply
   9,671.56x = 13,346.73 × 5,479.81
4. Step 4: Simplify right side
   9,671.56x = 73,137,544.52
5. Step 5: Solve for x
   x = 73,137,544.52/9,671.56
6. Step 6: Final answer
   x = 7,562.12