Finding the Fourth Proportional to 9,259.16, 12,775.72 and 5,531

Step by Step Solution

1. Step 1: Write the proportion equation
   9,259.16 : 12,775.72 = 5,531 : x
2. Step 2: Convert to fraction form
   9,259.16/12,775.72 = 5,531/x
3. Step 3: Cross multiply
   9,259.16x = 12,775.72 × 5,531
4. Step 4: Simplify right side
   9,259.16x = 70,662,507.32
5. Step 5: Solve for x
   x = 70,662,507.32/9,259.16
6. Step 6: Final answer
   x = 7,631.63