Finding the Fourth Proportional to 8,383.79, 12,586.69 and 5,622.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,383.79 : 12,586.69 = 5,622.83 : x
2. Step 2: Convert to fraction form
   8,383.79/12,586.69 = 5,622.83/x
3. Step 3: Cross multiply
   8,383.79x = 12,586.69 × 5,622.83
4. Step 4: Simplify right side
   8,383.79x = 70,772,741.14
5. Step 5: Solve for x
   x = 70,772,741.14/8,383.79
6. Step 6: Final answer
   x = 8,441.61