Finding the Fourth Proportional to 8,212.38, 12,308.24 and 3,526.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,212.38 : 12,308.24 = 3,526.86 : x
2. Step 2: Convert to fraction form
   8,212.38/12,308.24 = 3,526.86/x
3. Step 3: Cross multiply
   8,212.38x = 12,308.24 × 3,526.86
4. Step 4: Simplify right side
   8,212.38x = 43,409,439.33
5. Step 5: Solve for x
   x = 43,409,439.33/8,212.38
6. Step 6: Final answer
   x = 5,285.85