Finding the Fourth Proportional to 8,808.05, 12,154.72 and 5,273.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,808.05 : 12,154.72 = 5,273.21 : x
2. Step 2: Convert to fraction form
   8,808.05/12,154.72 = 5,273.21/x
3. Step 3: Cross multiply
   8,808.05x = 12,154.72 × 5,273.21
4. Step 4: Simplify right side
   8,808.05x = 64,094,391.05
5. Step 5: Solve for x
   x = 64,094,391.05/8,808.05
6. Step 6: Final answer
   x = 7,276.80