Finding the Fourth Proportional to 8,526.24, 12,787.88 and 3,259.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,526.24 : 12,787.88 = 3,259.89 : x
2. Step 2: Convert to fraction form
   8,526.24/12,787.88 = 3,259.89/x
3. Step 3: Cross multiply
   8,526.24x = 12,787.88 × 3,259.89
4. Step 4: Simplify right side
   8,526.24x = 41,687,065.83
5. Step 5: Solve for x
   x = 41,687,065.83/8,526.24
6. Step 6: Final answer
   x = 4,889.27