Finding the Fourth Proportional to 8,238.26, 12,364.34 and 3,561.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,238.26 : 12,364.34 = 3,561.81 : x
2. Step 2: Convert to fraction form
   8,238.26/12,364.34 = 3,561.81/x
3. Step 3: Cross multiply
   8,238.26x = 12,364.34 × 3,561.81
4. Step 4: Simplify right side
   8,238.26x = 44,039,429.86
5. Step 5: Solve for x
   x = 44,039,429.86/8,238.26
6. Step 6: Final answer
   x = 5,345.72