Finding the Fourth Proportional to 8,383.98, 12,580.58 and 5,099.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,383.98 : 12,580.58 = 5,099.38 : x
2. Step 2: Convert to fraction form
   8,383.98/12,580.58 = 5,099.38/x
3. Step 3: Cross multiply
   8,383.98x = 12,580.58 × 5,099.38
4. Step 4: Simplify right side
   8,383.98x = 64,153,158.04
5. Step 5: Solve for x
   x = 64,153,158.04/8,383.98
6. Step 6: Final answer
   x = 7,651.87