Finding the Fourth Proportional to 8,809.08, 12,156.91 and 5,271.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,809.08 : 12,156.91 = 5,271.61 : x
2. Step 2: Convert to fraction form
   8,809.08/12,156.91 = 5,271.61/x
3. Step 3: Cross multiply
   8,809.08x = 12,156.91 × 5,271.61
4. Step 4: Simplify right side
   8,809.08x = 64,086,488.33
5. Step 5: Solve for x
   x = 64,086,488.33/8,809.08
6. Step 6: Final answer
   x = 7,275.05