Finding the Fourth Proportional to 9,259.44, 12,775.50 and 5,279.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,259.44 : 12,775.50 = 5,279.10 : x
2. Step 2: Convert to fraction form
   9,259.44/12,775.50 = 5,279.10/x
3. Step 3: Cross multiply
   9,259.44x = 12,775.50 × 5,279.10
4. Step 4: Simplify right side
   9,259.44x = 67,443,142.05
5. Step 5: Solve for x
   x = 67,443,142.05/9,259.44
6. Step 6: Final answer
   x = 7,283.72