Finding the Fourth Proportional to 8,997.50, 12,416.55 and 5,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,997.50 : 12,416.55 = 5,271.50 : x
2. Step 2: Convert to fraction form
   8,997.50/12,416.55 = 5,271.50/x
3. Step 3: Cross multiply
   8,997.50x = 12,416.55 × 5,271.50
4. Step 4: Simplify right side
   8,997.50x = 65,453,843.33
5. Step 5: Solve for x
   x = 65,453,843.33/8,997.50
6. Step 6: Final answer
   x = 7,274.67